They are stamped (6″ REVERSIBLE JAW) on the top. Type: Vise Jaws. Sub-type: Vise Jaws Bracket Kit. 2x Vise Jaws. This is likely consistent with the original design. Material：High quality aluminum. For Many Craftsman & Columbian.
Item Tag: Vise Jaws
Aluminum Machinable Soft Jaws for 6″ Kurt style Vises. Jaws are machined on all sides. square and smooth.
Type: Vise Jaws. 2x Vise Jaws Plate. For Craftsman & Columbian. High quality material: This jaw is made of high quality aluminum for excellent durability and wear resistance. Size : 5 1/2″ W, 3/4″H, 1/2″T, OFFSET WITH 3″ C-C.
Feature： Perfect For Easy And Quick Set-Ups, Reducing Down Time 6″ (Length) × 2″ (Height) × 1″ (Width) Reversible Aluminum Vise Jaws Set Of 2 Fits For 6″ Precision Milling Machine Vises Description： Parts Are Tumble Deburred Dimensions (Nominal): 6 × 2 × 1″ Material: Aluminum Package List: 4 Pack Aluminum Soft Jaws 6 × 2 × 1″ Notes: The Product Has Passed Strict Quality Testing Durable And Easy To Install And Replace Cost-Effective, The Best After-Sales Service Quality Assurance For Your Peace Of Mind .