They look like real chewed up pieces of gum, but in fact they are much stickier, sort of. Try using real chewed up gum to hang art work on your fridge, then try these magnets. Which ones work better?
Made from thermoplastic rubber (whatever that means) and basic fridge magnets.
Get Chewed up gum fridge magnets here! (This is an affiliate link, which means I would make a tiny commission if you clicked and bought something. Thank you!)