... .Flexible , no harmless to body, long-term to use4.Easy to wear and read time 5.CE and ROHS ... , packing Carton info , etc , all can ask me . I will answer you all the question detailed . ... in question or broken, please let me know , we will send to you good watches or watch parts ... range of other silicone watches. please feel free to contact me .Gotop Industrial Limited mainly produce silicone wtches, ...