iGadgitz 1 Pack Standard Green Waterproof Floating Wrist Strap suitable for Underwater/Waterproof: Cameras, Video cameras, cases & housing, Marine binoculars + Waterproof Sony phones Soft neoprene covered wrist strap with foam interior suitable for most wrist sizes. Easily slips on to the wrist and weights just 16g (0.56oz) Helps to prevent sinking or loss of waterproof devices in water by providing buoyancy but allows you to take easily below the surface. Each strap is designed to float devices up to approx. 200g (7oz). Additional straps can be attached to heavier cameras to give buoyancy Brightly coloured to allow for more visibility in low light conditions. Can also be used outside of the water as a padded wrist strap for cameras, phones, binoculars.