Both knives are comfortable and durable. These hunting knife was designed with full tang construction and Alcryn MPR rubber handles for superior performance in demanding end-use environments. The additional large integrated finger grooves and grip areas provide safety of use. 1636-0168: 4" Satin Finish 420HC Stainless Steel blade. Weight: 5.5 oz. 1636-0167: 3 1/4" satin finish 420HC Stainless Steel blade. Weight: 2.8 oz.