Crags are an oddly satisfying magnetic fidget putty that comes in a matte white tin. Super satisfying to the touch, run these super-smooth magnetic stones through your fingers for the ultimate stress relief. 512 Mashable, Smashable, Rollable, Buildable, Puzzling, World-famous, Fun for adults, All-you-can-build with, Rare Earth, neodymium magnetic pebbles. Mash it like putty or build like a pro; the secret of Speks is the size of the magnet. Speks are good clean fun for everyone 14+. Each Spek is 2.5mm making it moldable, buildable, and compliant with all safety standards.