Features: 100% Brand New and High Quality Material: PPS Engineering Plastic Size: Length: 18 cm, Width: 16 cm With scale and set screws, it can be fixed in different directions for front or rear fine-tuning. 1. The camera can be moved forward and backward for shooting. 2. Features a scale for precise distance selection. PTZ is easy to use and can be mounted on a tripod for excellent stability. It can move back and forth by approximately 10 cm, allowing for small adjustments in lens position and achieving a sliding effect. This is ideal for close-ups of single subjects, providing excellent detail. Macro shots require precision, subtle focus, and height adjustment. This accessory is a convenient trimmer that allows for parallel adjustment front and back. Made from PPS material, it significantly reduces weight while maintaining structural integrity for precise distance adjustments. It's a trusted accessory for many photographers. The drive mechanism uses a spiral gear, ensuring stable and precise focusing and range fine-tuning for macro shots and close-ups. Note: Actual color may vary slightly from the picture due to different monitor settings and lighting effects. Please allow for 0.2-0.3 cm differences due to manual measurement. Package List: 1 x Macro Focusing Rail Slider