Lasts longer than natural rubber bands. Improves your style! Does not get tangled even in hair. Perfect for your pet as well. ■ This product is made of thermoplastic polyurethane (thermoplastic polyurethane (thermoplastic polyurethane) molded ■ It complies with the RoHS directive, and is used in many industrial materials applications. ■Transparent products can be read the code even if you wrap the barcode on it. ■ Color products have a more vibrant color than natural rubber products.