The Opteka GLD-400 Camera Slider is designed to give you the ability to create Hollywood-quality production shots without over-extending your budget. Featuring heavy-duty anodized aluminum construction, self-lubricating glide rails, spirit level & tension adjustment, the GLD-400 Slider gives you the best value for your dollar. The GLD-400 Slider can be attached directly to a tripod and may also be used standalone with the included feet, which raises your camera setup approximately 2" off the ground.