SE JT33WB Steel Bench Block with Wood Base, 3" x 3" Dimensions of steel block (3" x 3" x 1/4") with a wooden block base (3" x 3" x 1") Steel surface is hardened, ground to be completely flat, and then polished Made of high carbon steel Wood block provides less vibration stress on your hands Wood base provides an impact and noise absorption layer between your steel block and work surface