The GSI Outdoors N Case is a watertight case to keep personal items safe and dry. Sleek, lightweight and watertight just fill it, close it, hang it around your neck. The elastic belt clip keeps it from banging around during activity. Use: Travel swimming Weight: 2.9 oz. Size: 6.2x3x1.5. Material: Polycarbonate. Sized to fit flip phones, micro hard drive MP3 players, keys and other compact personal items. Round, blunted edges and tight waterproof joints. Comes complete with lanyard and elastic tether which attaches at the waist to hold case securely during active pursuits.