This Slap Bracelets made of a soft and durable silicone and copper with smooth edges. It's easy to wear, taht simply slap on your wrist and it will make a comfortable grip based on your wrist size. It wraps around the other end and you are good to go. Perfect for birthday giveaways, party favors, classroom rewards, pinata fillers, Easter stuffers, event souvenirs and more. 8.5" L x 1" W.