It can be installed in the water pipe of the cooling water tank. Provides the accurate installation position for the water thermometer sensor. Made of high-quality aluminum alloy, offering good heat conduction, a lustrous finish, and durability. Available in multiple sizes to meet various requirements for different water pipes. Easy to install with 2 durable adjustable clamps, suitable for most vehicles. Specifications: Material: Aluminum Alloy Color: Black External Diameter: 28mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm (Optional) Length: 6.8cm / 2.7in Package Weight: 122–146g Fitment: Universal fit for most vehicles Package Included: 1 x Water Temperature Joint Pipe 2 x Clamps Notes: Please check and confirm the size before purchasing. Due to the elasticity of vehicle water pipes, it is recommended to choose a slightly larger size than the internal diameter of your water pipe. For example, if your water pipe has an internal diameter of 27mm (1.1in), a 28mm (1.1in) joint pipe is ideal. Installation is straightforward, but professional installation is recommended.