This rubbery stretch bracelet is harmless with firm flexibility. My 3yr old granddaughter wore it on her wrist and talked to its glowing beauty all night. I gave it to her for Valentine and she loved it!This is just cool it does glow in the dark is comfy a little small not for me but for others maybeVery nice product I recommend buyingHe liked itBroke the very first day I got them I thought they’re regular bracelets, but nope they’re just rubberMy granddaughter loved themLove itBroke after a short time.