The B-6 Caliper knife from Mantis is a low-bulk, high-utility knife. One side houses a small, folding "break" style blade. The other side has a very innovative "caliper" style clip for use on a belt loop, purse strap, or key chain. The frame locks the blade into place, and the length of the whole package is 4.4" when opened. You blade length is just over 1". The blade is constructed of a High Carbon 420 series stainless steel.
Information from Mantis Knives