Features ★ Freely Telescopic Empty Drum Hammer - Home inspection hammer supports free expansion control,Shrinkage Length: Approx. 26cm / 10.2inch. Elongation Length: Approx. 130cm / 51.2inch, the hollowing drum hammer telescopic rod is easy to use, easy to carry and use, space-saving, ★ Sturdy and Durable - The home inspection hammer is made of high-quality stainless steel, and the handle is made of sponge material, which is comfortable to hold and non-slip and shockproof. ★ Wide Applications - The home inspection hammer is suitable for detecting whether walls, tiles, ceilings and other structures are empty. All parts are tightly connected, stable and not shaking, and the performance is excellent. ★ How to Use - Just tap the hollowing drum detection hammer Home Installation Hammer on the wall to determine the range of the hollow wall.The sound detection hammer has a sponge handle, making it lightweight, easy and convenient to use, comfortable and shockproof. ★ Customer Service - We know you will like milk steam pitcher. But in case you are not happy with your purchase for whatever reason, please let us know. We are committed to meeting customer demands and do our best to solve the problem for you! Specification:Item Type: Home inspection hammer Shrinkage Length: Approx. 26cm / 10.2in Elongation Length: Approx. 130cm / 51.2in Material: Stainless steel Ball Diameter: Approx. 19mm / 0.7in Package List:1 x Hollow Drum Hammer1 x Wrist Band (Random Color) Package List 1 x Hollow Drum Hammer 1 x Wrist Band (Random Color)