Designed for fast and efficient way to mount data collectors or controllers to antenna poles and rover rods. Made of aluminum for durability and performance Quick-release button allows a quick-release cradle to rotate in a comfortable position Compatible with SureGrip™ quick-release, SitePro™ open cradles, and most competitor's cradles Fits up to 1.5-in (20-38mm) diameter pole Wgt 0.33 lb (0.15kg)