The telescopic stainless steel hollow sound detection hammer is an essential tool for and DIY enthusiasts. Designed with a solid ball head, this inspection test hammer is for detecting hollow sounds in walls, floors, and ceilings. Simply extend the handle to the desired length and tap the surface gently. The sound produced will help you identify any hollow areas, ensuring a thorough inspection. This tool is also ideal for checking tile installations and detecting empty drums in various construction projects. Features -Color:Black -Material:Stainless Steel -Size:30.00X2.00X2.00cm/11.79X0.79X0.79in -Size:250.00X2.00X2.00cm/98.25X0.79X0.79in -Solid ball head design: the solid ball head design ensures more accurate results when using the hollow sound detection tool for home inspections -Versatile testing: ideal for testing walls, tiles, ceilings, and other structures to determine if they are hollow or solid -Easy to use: simple and user friendly, making it suitable for both professional and diy enthusiasts -Compact and portable: the tool is lightweight and compact, making it easy to carry and store without taking up much space -Multifunctional: designed to detect hollow areas in walls, floors, ceilings, and more, providing a comprehensive inspection solution Package list: 1 x Sound Detection Hammer