The fastener have strong adhensive for fasening the armbinds on your arm and cannot be easily detached The bright colour let you stands out on the playing field and make easy to see the position of captain Make of Polyester, flexibility, softness and comfortable Sweat wicking and breathable It can used in football training, football game, basketball game, volleyballs and other team sports Suitable for most adults, teenagers and children Elastic and flexible, which can adjusted according to your arm, very comfortable and brings you comfortable and relax while playing