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 Epic, Red Scarlet, Black Cameras, Etc. Or Other Camera Accessories. 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 Will Not Affect The Use Material: Aluminum alloy colour: Package Contents: 1 x Camera Rail Slider 1 x Hexagonal Wrench