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5 Essential Grading Supplies

Five essential consumables for OMR exam operations. Bulk supply for schools and institutions and quarterly scheduled delivery keep operations stable.

5 essential items Free shipping within Korea Quarterly regular supply Tax invoice / deferred payment
Why Us

Why Edu24 Supplies?

An OMR consumables supplier specialized in supplying schools and institutions

Proven OMR-grade specifications

Every item is built to standard specifications for OMR exams. Marking pens write dark enough for OMR scanners to read, and correction tape keeps erased marks from being read.

Free shipping within Korea

Ships within 1–2 business days after ordering. Fast, free delivery to any school or public office (remote islands and mountain areas excluded).

Quarterly regular supply

Regular supply contracts by semester or quarter include automatic delivery + an extra 5% unit-price discount. Run smoothly with no inventory burden.

Specialized in Institutional Supply

Tax invoices / deferred payment for schools and institutions / regular supply contracts / card payment — all supported, processed to fit your administrative procedures.

Items

5 Essential Consumables

Essentials needed at every stage of OMR exam operations

BEST OMR Collection Envelope

OMR Collection Envelope

Safe collection and storage of answer sheets after exams
NEW Exam Paper PVC Envelope

Exam Paper PVC Envelope

Clear envelope for transporting and storing exam papers
HOT OMR Marking Pen

OMR Marking Pen

Black marking pen for OMR
Correction Tape

Correction Tape

Correction tape for OMR marking
Air Spray

Air Spray

Compressed air for cleaning OMR scanners
Detail

Item Details

Check specifications and features at a glance

01 OMR Collection Envelope
Safe collection and storage of answer sheets after exams

OMR Collection Envelope

An OMR-dedicated envelope for safely collecting and storing answer sheets after exams. Made of thick 120g kraft paper so answer sheets don't crease, with the school name, exam name, class and date printed directly on the cover. A return approval box and sealing sticker are included for exam security procedures.

Dimensions Letter envelope / Half-A4 / A4 (3 types)
Material Kraft paper 120g
Printing School name, exam name, class, date
Unit 100 per box
  • Collects answer sheets without creasing
  • Custom printing of school and exam names
  • Official Korean CSAT-style envelope specifications
  • Return approval box / sealing sticker
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02 Exam Paper PVC Envelope
Clear envelope for transporting and storing exam papers

Exam Paper PVC Envelope

A clear PVC envelope optimized for transporting and storing exam papers. Its thick 0.2mm PVC is highly durable and safely protects exam papers from rain, moisture and folding. Contents can be checked from outside the envelope, making exam operations more efficient.

Dimensions A3
Material Clear PVC 0.2mm
Closure Button
Unit 50 per box
  • Contents visible at a glance
  • Protects from moisture and folding
  • Reusable / highly durable
  • Button closure
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03 OMR Marking Pen
Black marking pen for OMR

OMR Marking Pen

A black OMR marking pen optimized for marking OMR answer sheets. It meets the standard specifications used in the Korean CSAT (national college entrance exam) and guarantees a recognition rate of 99.9% or higher on all OMR scanners. Quick-drying ink prevents smudging during exams, and we supply both single units for students and bulk boxes for schools.

Color Black (OMR standard)
Tip size 1.0mm standard
Ink Quick-drying, smudge-proof
Unit 12 per case, 144 per box
  • Guaranteed 99.9% recognition on OMR scanners
  • Korean CSAT standard specifications
  • Water-resistant ink that won't stain hands
  • Bulk supply to schools available
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04 Correction Tape
Correction tape for OMR marking

Correction Tape

A 5mm-wide correction tape for covering wrong marks on OMR answer sheets. The white PET film hides the mark so the OMR scanner does not read the erased bubble, and its smooth application and steady grip make it easy to use during exams. Bulk student pricing applies.

Width 5mm (fits OMR marking width)
Length 8m / 10m options
Material PET film, white
Unit 12 per case
  • Covers wrong marks so they are not read
  • Smooth application, clean finish
  • Stable grip, steady during exams
  • Bulk pricing for students
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05 Air Spray
Compressed air for cleaning OMR scanners

Air Spray

A compressed-air spray for removing dust and debris from inside OMR scanners. It uses eco-friendly HFC-152a gas for safety, and its ultra-precise nozzle reaches narrow gaps such as scanner rollers and lenses. Anti-static treatment makes it safe to use on precision equipment.

Capacity 400ml standard
Composition HFC-152a safe gas
Use Scanners, keyboards, PC interiors
Unit 12 per box
  • Cleans OMR scanner rollers and lenses
  • Ultra-precise nozzle for narrow gaps
  • Anti-static treatment
  • Keep on hand in school IT rooms / staff rooms
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How to Order

Ordering Process

Your order is complete in 4 simple steps

1

Request a Quote

Tell us the items and quantities you need by phone or through the quote request board.

2

Quotation issued

We issue an exact quotation based on quantity and options within 1 business day.

3

Order · Delivery

Ships within 1–2 business days after order confirmation. Arrives quickly with free delivery within Korea.

4

Payment · Settlement

Tax invoices, card payment and deferred payment for schools are all available.

FAQ

Frequently Asked Questions

The questions we hear most often before purchase

AItems can be ordered from one unit (1 box/1 case). Printed items with your school name or logo start at 10,000 units. Bulk orders by school or institution are more cost-effective, and we provide a unit-price table by quantity when you request a quote.
AIn-stock items ship within 1–2 business days after ordering. OMR collection envelopes printed with a school logo take an extra 7–10 business days after proof approval. Shipping is free across Korea, excluding remote islands and mountain areas.
AYes. For supply to institutions such as schools and public offices, both tax invoices and deferred payment are available. Card payment and bank transfer are also supported, and regular supply contracts allow deferred settlement by quarter or semester.
AAgree on the required quantities by quarter or semester in advance, and deliveries are made automatically on schedule. Regular contracts receive an extra 5% unit-price discount, and payment can be monthly, quarterly or per semester.
AYes. We print the school name, exam name and logo directly on the cover of OMR collection envelopes. Design proofs are free, and delivery takes 7–10 business days after proof approval. The minimum production order is 10,000 units.

Need a quote for your school or institution?

Reasonable prices on 5 consumables + regular supply + free shipping, all in one

Request a Quote 0507-1337-0329