Model 224R is a 1.5 ounce Executive Lockback that is designed with a 2-1/8â?쳌 Hollow Ground 440 Stainless Steel blade that is rust resistant and easy to sharpen. The handle is made from Rosewood material with a Nickel Silver Bolster and a stainless-steel liner. Model 224R features a stainless-steel positive lock to ensure that the blade remains firmly in place and a nail nick to open the blade. The Blade Material: 440 Stainless Steel; Handle Material: Rosewood; Blade Length: 2-1/8 Inch; Closed Length: 3 Inch; Open Length: 5-1/4 Inch.