In search of safe magnets to use in the classroom or in a children's environment? Hero Magnets to the rescue! The larger size of these magnets make them safer for your young children. Great for whiteboards, filing cabinets, fridges, and more, each magnet holds up to 20 pieces of printer paper.Details:Green, purple and red2" x 1" x 0.5" (5.08cm x 2.54cm x 1.27cm)6 packs (3 magnets per pack, 18 total)Magnets and plastic