or nuts are included. Easy to install without installation instructions. Ensure stability, it is recommended to use screw fasteners for installation. We suggest Parts installed by professionals Made of quality aluminum alloy, firm, and durable. This adapter allows the use of the temperature meter / sensor assembly without major modifications. The adapter is installed in line to the outlet hose and the sensor screws on the side to read The water temperature. Model: SW26/28/30/32/34/36/38/40 Size: 26/28/30 /32/34/36 /38/40mm Model: Universal Weight: 135.9g/136.1g/145.8g/139.8g/129g/124.1g/115.3g/114.5g color: blue Material: high quality material Quantity: 1pcs Packing list: 1*car instrument modification Only the above package contents are included, other products are not included. Note: Reflection of light and different monitors may cause the item's color to be slightly different from the actual item. Measurements allow +/- 1-3 cm.