Pelican Waterproof Case 1010 Micro Case - for GoPro, camera, and more (Black) Unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof case Floats in salt water with 8 oz. Made of copolymer polycarbonate that makes it extremely strong and durable Speed lock; Clear purge cap; Temperature Rating -10 degrees to Plus 200 degrees; A ring and a lanyard are included for easy attachment Makes for handy for cell phones, PDAs, pagers, first aid supplies, sewing kits, medicines, repair kits, etc. Exterior dimensions: 5 7/16" L x 4 1/16" W x 2 1/8" D