Revo 47" Camera Track Slider Full Length, Lightweight Slider | Smooth Slides with Rigs up to 11 lbs | Sideways, Forward, Back, Slanted Slides Removable Feet with Rubber Tips | Threads for Mounting up to 2 Tripods | Non-Threaded Holes for Wall Mounting Removable Camera Carriage | 1/4" & 3/8" Screws for Cameras / Heads | Four 1/4" Threads for Articulating Arms Bubble Level for Measuring Evenness Whats In The Box: Set of 2 Feet and 4 Hex Screws, 1/4" Camera Screw, 3/8" Fluid Head Screw, Allen Key, Instruction Manual, 1-Year Limited Warranty