BESSKY Unisex Rubber Blue LED Watch Date Sports Bracelet Digital Wrist Watch Size:5*1.8cm Band Length: 22cm/8.7inch water resistant. Surface Material: Silicone. Strap Material: Silicone. ATTENTIONS PLEASE:Bessky is the only designated sellers for Bessky,Make sure you buy from Bessky.If you purchase here but receive product from other sellers,please help us report to Amazon Customer service for copyright infringement of Bessky brand product.Thank you very much in advance!