The Claw™ is a new and improved clamping system featuring an innovative clamping device that keeps your expensive data collecting hardware snug on the pole where it belongs without crushing it. Made of durable anodized aluminum for years of trouble-free use in the field. Designed for: Ranger 3/ TSC3 data collectors The Delrin Adapter can be purchased seperately to increase the OD of a 1-inch pole to 1.25-inches (#D11145)