Feature 1, It can be installed in the water pipe of the cooling water tank. 2, Provide the accurate installation position of the water thermometer sensor. 3, Made of high quality aluminum, good heat conduction effect, lustrous and durable. 4, Different sizes for choice, meet your different requirements for different water pipes. 5, Easy installation, with 2 durable adjustable clamps to fasten. suitable for most cars.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, 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. Specification: Material: Aluminum Color: Silver External Diameter: 26mm, 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm (Optional) Length: 68mm/2.7in Hole Thread: 10mm Package Weight: 122-149g Fitment: Universal fit for most of cars Package list: 1 * Temperature Gauge Adaptor 2 * Clamps Note: 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!