The SureGrip™ 5274 quick release cradle, by SitePro easily secures your data collector or controller with special design to prevent overtightening the clamp screw. Fast and efficient mounting of your data collector or controller to an antenna poles and rover rods when used with the SureGrip™ pole clamp. FEATURES: Designed to fit Surveyor 2 and Allegro 2 Easily secures data collector/controller with anti-crush quick release design that locks cradle when tightened Plugs directly into SureGrip™ quick-release pole clamps and other competitors Durable anodized aluminum design Weighs 0.49lb (0.23kg)