Made of high-quality alloy, the is powder sprayed or blackened, and anti-rust These M8 clamping rods have six different thread lengths, you can choose the right one to meet your needs The internal return spring automatically engages the teeth, and the handle can be fixed in place This handle is particularly suitable for situations where the lever rotation angle is limited, and is mainly used to adjust the position and height of mechanical operating parts. By pressing the handle button, the serrations will disengage, and then the handle can be turned to the desired position. describe: The adjustable lever is a clamping component that provides a ratchet function, which is especially useful in tight spaces. The design also allows easier visual adjustments to specific locations, and the ergonomic shape makes it easy to use. They are very suitable for situations that require more torque than simple knobs. Specification: treatment: powder coating, blackening Type: M8x60mm size:Handle length 63mm Material:Aluminum alloy colour:Black Package Contents: 1 x Adjustable tightening handle screw Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.