Heavy-duty construction, our rod diver adapters are constructed of high-strength solid steel for impact resistance and protection against rust and corrosion. perfect for any SDS as well as hammers and impact drills. Easy to use and install. Long-Term Use: Each pack comes with ground rod diver adapter for just the right balance of quality, durability, and performance. : 22mm Overall length: 200mm Color: Silver Material: steel Package Contents: 2 x Electric hammer round handle 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 measurement allowed error is +/- 1-3cm.