Polished Bench Block, 2-1/2 By 2-1/2 By 3/4 Inches | DAP-525.50 Ideal for metal work, dapping, wire wrap and more Made of hardened steel Allows smooth surface for metal working burnishing the back side at the same time Highly polished 2-1/2 inches by 2-1/2 inches by 3/4 inch