You are looking at a silicone bead wristlet keychain. The wristlet is made with silicone beads, nylon cord and a lobster clasp keyring. The wristlet is NOT stretchy. The opening of the wristlet is 3 inches. The wristlet is made with 20 - 15mm beads. They are yellow, blue, purple and floral print. Although the nylon cord is very strong it is not indestructible and can pose a choking hazard for small children. Please let me know if you have any questions. Thanks for looking!