Specifications:Unbreakable, watertight, airtight, dustproof, chemical resistant and corrosion proof caseMade of copolymer polycarbonate that makes it extremely strong and durableSpeed lockClear purge capTemperature Rating -10 degrees to Plus 200 degreesA ring and a lanyard are included for easy attachment.Case is able to be submerged under 1 meter of water for up to 30 minutes in accordance with IP67 testing parameters