Made of non-allergic natural resin,waterproof and sweat-proof,soft and comfortable,durable Only applicable for Citizen special model watch strap, such as AW1475/1476/1477/CA4154/4155,not suitable for other models of watches It is important to select the correct model. In order to avoid the trouble caused by the return and exchange of goods, if you have any questions about the size, please contact customer service at any time Including packaging:1 x rubber strap; 1 x Tool kit. Free tools make it easy for you to change the clasp and make your watch look new It is made of non-allergic natural resin, soft and comfortable, durable, and compatible with Citizen AW1475/1476/1477/CA4154/4155 watch. Please check the size of the strap carefully before purchasing