Features: Made of High quality rubber, this quick intake adapter is an inflatable block off bladder with a pressurized vapors pass-through for quickly and easily testing. It is an inflatable block off bladder with a pressurized vapors pass-through that allows technicians to test an entire intake or exhaust system quickly and easily. With inflatable block off bladder, it can reduce workloads in a leak check, compatible for diagnostic leak detectors of most automobiles. Conform to various shape of intake / exhaust: Round, ovals, square, rectangular and even severely angled and hard to reach intake / exhaust system. Inflatable block off bladder and a pressurized vapors pass through allow technicians to test an entire intake or exhaust systemsquickly and easily. Specifications: Material:Silicone Size:As Picture Shown Color:Black Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1 Set Smoke Machine Bladder