B017CD2TBU 12 pound anvil 11 inches by 4 inches wide by 4 inches tall (2) pcs Practice Steel (1/4 inch by 2 inch by 6 inch) (1) pc 1075 Spring Steel (3/16 inch by 2 inch by 6 inch) Mounting Holes Pre-Cut and Mounting Hardware Included Sound Deadening Kit Included and Pre-assembled