This ground rod driver is made of steel material, which is impact-resistant and rust-resistant. It is a heavy-duty one-piece tool, durable to use. Our ground rod driver is compatible with all other SDS-PLUS hammer drills (not compatible with tools that accept SDS-MAX). This tool has a thick metal wall, which can withstand greater impact without damage. With it, you don't need to use sledgehammers and planks to install ground rods. This product is not only for ordinary steel T-posts, but also for small signs or shallow steel posts that support power outlets. Product name: Ground rod driver Color: Silver Material: steel Size: D: 2.1 cm Package contents: 1 * Ground rod driver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The allowed measurement error is +/- 1-3 cm.