Mr. Pen OQIH040M434VS Flexible Magnetic Sheets, 12 x 16 in, Adhesive, 40-Pack

For crafts, labeling, signs, and DIY projects that need custom-sized magnets, Mr. Pen flexible magnetic sheets give you a format you can trim to fit the job.

Each sheet measures 12 by 16 inches and has an adhesive backing, so you can attach a picture, sticker, or other lightweight item to make a magnet.

The 40-sheet pack supports multiple projects, from reusable labels to educational materials. Use the magnetic side on metal surfaces such as a refrigerator, filing cabinet, locker, or whiteboard.

Spec sheet

• Brand: Mr. Pen
• Model: OQIH040M434VS
• Type: Flexible magnetic sheets with adhesive backing
• Size: 12 x 16 inches per sheet
• Capacity: 40 sheets
• Color: Black
• Shape: Rectangular
• Material: Metal
• Thickness: 0.1 inches

Getting the most from it

Cut or trim a sheet to the shape and size your project needs, then use its adhesive backing to attach the item you want to display. The flexible sheet format gives you room to make custom pieces instead of relying on ready-made magnets in fixed shapes. For example, a photo or sticker can become a refrigerator magnet, while a set of trimmed pieces can serve as labels for a metal filing cabinet or locker.

The two sides serve different purposes: the adhesive backing attaches to the craft material, and the magnetic side holds against a metal surface. That makes the sheets useful for projects that move between a worktable and a display area, including classroom visuals, home organization, office labeling, and workshop signs. Their 12-by-16-inch format also lets you plan larger layouts before cutting smaller pieces from a sheet.

Buyers often highlight how easily the sheets can be cut and used to turn stickers, small pictures, and other items into magnets. Feedback is mixed on adhesion and magnetic strength, so the intended application matters: these sheets offer a flexible base for custom projects, while buyers report differing results for how firmly they stick and hold. Consider the surface and the item you plan to attach when choosing how to use them.

Who it’s for

These sheets suit crafters, teachers, and anyone making custom labels, signs, learning tools, or picture magnets. They are especially useful when a project calls for a particular shape or size that a finished magnet would not provide. The pack also works well for creating several related pieces, such as a group of labels for metal storage or a set of classroom visuals.

A solid pick if you want a cut-to-size magnetic material with adhesive backing for home, school, office, or workshop projects. If your priority is a ready-to-use magnet in a fixed design, a pre-made option may fit that approach better, these sheets are for people who want to shape and personalize the result themselves.

Is it worth it?

The main advantage is control over the finished piece: each large sheet can be trimmed for a custom craft, label, or sign, and the 40-pack gives you material for multiple projects. Rather than buying individual magnets in predetermined shapes, you can create pieces that match your artwork, labeling plan, or display. Choose this set for flexible DIY use on metal surfaces and for turning small images or stickers into personalized magnets.