... style watch have functions include time( day/date ) , week , slap , Chronograph , Alarm clock , noctilucence and etc., 1. Made by 100% grade of silicone ... rubber and it mixed MAGMA-Q&Tourmaline.2. This anion watch can emit negative ions infrared ... carton: 50CM*38CM*28CM10. Most competitive price with good quality. Silicone Slap Watch