The SECO 5200-150 Quick Release pole clamp is part of the Claw™ clamping system from SECO. Clamps onto your 1.25" outside diameter prism or rover pole without crushing it. Accepts any of the SECO 5200 series Quick-Release Cradles for data collectors, such as the 5200-052 or 5200-053 NOT included (second photo shows the 5200-150 clamp and 5200-052 cradle together for illustration purposes only). Made of anodized aluminum and stainless steel.