Telescopic Sound Detection Tool 115CM Hammer Wall Professional 1Pack Are you looking for a professional, yet hollowing drum hammer? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? , ! Our professional hollowing drum hammer must meet you needs. It is one of the for you.Features- Color: Blue.- Size: 115x2.5x2.5cm- Material: Stainless steel.- Stainless steel telescopic design with reinforced pressure groove make it a firm and durable product.- It can be freely telescopic to easily detect the wall.- Gently tap the wall to determine the scope of the cavity wall.- It can be also used for tour guides, blackboard presentations and operational instructions.- Dear buyer, due to lighting effect, monitor's brightness, manual measurement, etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you!Package list: 1 x hollowing drum hammer