With a scale and tripod screw, this rail slider allows for precise front-to-back and left-to-right adjustments. It is especially useful for macro photography when focusing is challenging. The camera can be moved smoothly in small increments forward, backward, left, and right. Equipped with measurement markings, it enables accurate distance control. The gimbal is easy to use—simply mount it on a tripod for stable operation. It offers a 10 cm range of movement in both directions, allowing for subtle push-pull and lateral lens effects. Precise focus and positional adjustment are essential in macro photography, making this parallel and linear fine-tuning device a convenient accessory. Constructed from PPS material, it is lightweight yet durable enough to support medium-sized cameras. The drive mechanism uses a spiral moving gear for smooth and stable continuous adjustments. Color: Black Material: Plastic Size: 35 cm Package Contents: 1 x Tripod Rail Slider Head Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance: +/- 1-3 cm.