Mr. Pen Adhesive Magnetic Sheets, 12 × 16 in, 40-Pack

Mr. Pen adhesive magnetic sheets are a 40-pack of large, cuttable sheets for crafts, labels, signage, and DIY projects. Adhesive on one side is intended for smooth surfaces, while the magnetic side is designed to attach to metal surfaces. Customer feedback is mixed on how well the adhesive sticks and how strong the magnetism is.

At a glance

Large sheets can be trimmed for custom sizes and applications.
Adhesive backing is described as sticking to most smooth surfaces.
The magnetic side is intended for metal surfaces including refrigerators, filing cabinets, lockers, and whiteboards.
Suggested projects include custom magnets, reusable labels, and educational tools.

Price

$35.99Save 10%

Reference price: ~~$39.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

The 12 by 16-inch format provides a sizable starting sheet for custom cuts.
A 40-sheet pack supports repeated projects or making multiple custom pieces.
Two-sided utility combines an adhesive side for attaching an item with a magnetic side for metal surfaces.

Technical specifications

11 specifications

Identity
Brand	Mr. Pen
Model	OQIH040M434VS

Dimensions and form
Sheet dimensions	12 by 16 inches
Form factor	Rectangular
Thickness	0.1 inches
Pack quantity	40

Materials and appearance
Material listed	Metal
Color	Black

Design and use
Backing	Adhesive backing
Cutting	Can be easily cut or trimmed to suit any custom application.
Listed uses	crafts, labeling, signage, and a variety of DIY projects

What to know before buying

Customer feedback is mixed about adhesion and magnetic strength. Consider this before relying on the sheets to hold items securely, particularly if the item is heavy or the surface is not smooth.

What’s in the box

Included

40 adhesive magnetic sheets

Who is it for?

A good fit for

Crafters making custom magnets from stickers, small pictures, or other items.
People who need cut-to-size sheets for labels, signage, or classroom projects.
Home, office, school, or workshop users looking for a multi-sheet supply.

Less suited to

Buyers who need a confirmed strong magnetic hold or consistently reliable adhesion for a critical application.

Mr. Pen Adhesive Magnetic Sheets, 12 × 16 in, 40-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 7,489 ratings

5 stars73%73%
4 stars10%10%
3 stars6%6%
2 stars3%3%
1 star8%8%

Customer feedback highlights ease of use and the ability to cut sheets to size, with reported uses including turning stickers and small pictures into magnets. Experiences with adhesion are mixed, and some customers report poor magnetic strength. Those concerns matter if you need the adhesive to hold firmly to a surface or expect the magnetic side to support an item reliably.

Positive themes

Customers describe the sheets as easy to use and easy to cut to size.
Customers report using them to turn stickers and small pictures into magnets.

Negative themes

Some customers report poor magnetic strength.

Mixed feedback

Feedback on adhesion varies, with some praising the backing and others saying it does not stick properly.
Feedback on strength and functionality is mixed.