[LED Watch, Black] Franterd Unisex Ultra Thin Sports Silicone Digital LED Wrist Watch Imported Strap Material: Silicone, Surface Material: Silicone. Display: Digital, Movement: Digital. Size:50mm*18mm, Band Length: 22cm/8.7inch. Additional RED LED function to show the time clearly in dark areas Waterproof: No. Just life waterproof. Not suitable for Swimming or Surfing.