Description of Backcountry Aluminum Crystal Card At BCA, their passions are ski touring and innovation. Their mission is to constantly break new ground--on the snow and in the lab. Their company is owned and operated by dedicated backcountry skiers and snowboarders that live for freshies--and are stoked to be part of the outdoor industry. Features: 1, 2, and 3 mm grids Protective clear coat Crystal and snowpit "cheat sheets" Weight: 1.7 ounces