What makes Magnatag® whiteboard magnets the best? They are 40 mil (.04 inch) thick, with a solid 10 mil (.01 inch) hard flexible plastic writing surface laminated to strong 30 mil (.03 inch) permanently-magnetized soft flexible magnetic rubber. They have a hard, firm EasyGrip™ plastic edge. They magnetically lock tight to the steel white board to prevent accidental sliding or dislodgment yet they lift easily for repositioning. They smoothly scissor-cut and stay tightly laminated with no loose edges. Designed to give you a lifetime of daily use with no problems.
Use Damp-Erase pens ONLY on the no-smear, non-glare Matte surface of these magnets.