Features: 1. Universal 4.9cm Standard Quick Release Safety Rail Can Be Attached To Any Accessory With Two 1/4inch-20 Threaded Holes Via Two Included 1/4inch-20 Screws 2. Install The Top Handle, for Clamp Handle, for Clamp, Camera Cage, Microphone Stand, Monitor Mounting, Etc. 3. Features Spring-Loaded Pins On Both Ends To Prevent Accidental Falling Off. 4. Release A Spring-Loaded Pin On Each End Of The Track And You Can Slide Your Accessory Quickly. 5. Compatible With for Small Rigs With for Clamps, Red , Red Scarlet, Cameras, Etc. Or Other Camera Accessories. Description: Product Name: For Slider 4.9cm Style Length: 4.9cm Applicable: Universal Type Note: Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use Material: Aluminum alloy colour: As Shown Package Contents: 1 x Camera Rail Slider 1 x Hexagonal Wrench Only the above package content, other products are not included. Note: Light reflection 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.