http://www.mtntools.com/cat/rclimb/chal ... ammies.htm
HAND JAMMIES allow you to jam with security and comfort in both slippery or coarse & painful skin shredding cracks! JAMMIES feature wide elastic finger loops, extra padding across the knuckles (gotta love that), and most importantly a thin layer of sticky climbing rubber on the entire back of your hand - which will instantly improve your crack climbing. A split leather cuff with carabiner clip-in hole & hook-n-loop wrist straps lock you in... but easily allows removal for belaying chores or the next face pitch. Make HAND JAMMIES part of your rack - for increased performance, comfort and greater protection.