Molded from a hard thermoplastic urethane with embedded magnets that adhere to any cast iron or steel bench vise. Hard urethane faces prevent marring of soft metals while being worked. Molded with round grooves in a variety of diameters:

• 5 vertical groves 1/16", 1/8", 1/4", 3/4"
• 1 horizontal groove, 3/16"
• 1 angle groove 60°, 13/32" dia.

Faces measure 4.5" x 1". Provided as a set of 2. Made in China.