The E-Image ES50 slider uses a unique tracking mechanism that provides 29" of sliding range in a unit that is only 20" long. Its 16 layer carbon fiber frame and CNC machined components form the core of a ruggedly sturdy slider that is both durable yet smooth in operation. This slider is perfect for run-and-gun style shooters who require maximum quality video with minimal gear. The shuttle of the ES50 will accept both 1/4"-20 and 3/8"-16 threading and will operate smoothly with payloads up to 17.6 lbs.