With a scale, and a tripod screw, through the fixation in different directions, you can achieve fine adjustment of front and rear or left and right. If you difficult to focus on macro photography, this thing is especially useful The camera can be moved forwards, backwards, left, and right for There is a scale on it, and the distance can be accurately The gimbal is easy to use, just install it on a tripod, very stable It can move 10 cm back and forth, and 10 cm left and right to achieve the effects of pushing and pulling and moving the lens in a small range. It is used to achieve the effects of mid-range, close-up and close-up of the . The important thing in macro is precise and adjustment of focus and elevation. Therefore, a fine adjustment device that can be finely adjusted in parallel, front and rear, is a very convenient accessory. The use of PPS material, the structure that can be loaded with a medium-frame camera and the function of finely adjusting the distance have been supported and affirmed by many photographers. The use of PPS material greatly reduces the weight. The driving part adopts a spiral moving gear, so that close-up and continuous , such as close-up and continuous , can be fine-tuned more stably. Colour: black Material: plastic Size: 35cm Package Contents: 1 x Tripod Rail Slider Head 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.