"Falcon IV" Lockback Knife on a Key Chain. This handy knife on a key chain features an extra sharp 1-7/8" aisi 420j2 surgical stainless steel blade with half the blade serrated to cut cord or twine easier and lightweight Leymar(r) handle. The black button allows one-handed opening with either the left or right hand. Measures 4"1/4 long opened and 2-1/2" closed. Lifetime warranty. Gift boxed