1. Made of high-quality rubber material, excellent sealing performance 2. Compatible with all car smoke testers 3. Unique cone design, suitable for almost all exhaust intake pipes of cars, motorcycles, boats and light trucks 4. Easy to use: insert the cone sleeve into the diagnostic part (such as intake guide/pipe or exhaust tailpipe), and use the smoke exhaust machine to spray smoke to test system leaks 5. Detect leaks in the cars intake and exhaust system through steam 6. Size: 100x85mm