Features:It can be installed in the water pipe of the cooling water tank. Provide the accurate installation position of the water thermometer sensor. Made of high quality aluminum alloy, good heat conduction effect, lustrous and durable. Different sizes for choice, meet your different requirements for different water pipes. Easy installation, with 2 durable adjustable clamps to fasten. suitable for most cars. Specifications:Material: Aluminum AlloyColor: BlackExternal Diameter: 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm (Optional)Length: 6.8cm/2.7inPackage Weight: 122-146gFitment: Universal fit for most of carsPackage Included:1 x Water Temp Joint Pipe2 x ClampsNotes:1. Please check and confirm the size before purchasing! In account of the elasticity of the car water pipes, so recommend you choice a little bigger model than your car water pipes. Such as if your car water pipe internal diameter is 27mm/1.1in, then 28mm/1.1in internal diameter joint pipe is perfect.2. Easy to install, but professional installation is highly recommended!.