About this item 【DIAGNOSE VARIOUS ISSUES】: Whether you are a professional mechanic or a hobbyist, the Cylinder Stethoscope Set is ideal for pinpointing issues within your engine; Identify broken gaskets, bad pulleys, damaged gears, defective valves, water pump failures, and other defective or damaged parts that cause odd noises and faulty operation 【SENSITIVE SOUND CHAMBER PINPOINTS SOURCE OF NOISE】: This mechanic stethoscope car and motorcycle diagnostic tool features a sensitive sound chamber that amplifies sounds so that you can easily detect the issues within your engine 【SIMPLE and EFFICIENT】: Thin diaphragm and extension probe pinpoints the source of the sound while the ear buds allow you to isolate outside noises so you can focus on detecting the issue; Simply follow where the sound is the loudest in the motor and create contact between the probe and surface to confirm 【DURABLE】: Constructed of vinyl tubing and ABS plastic ends for strength, durability, and longevity; Shockproof handles make work safe and secure; Comfortable rubber ear buds isolate outside noises 【After-sales Service】: If you have any questions, please contact us in time, we will reply you within 24 hours. › See more product details