The Falcam GearTree 2747 Basic Extension Grip Arm enables the mounting of various equipment and accessories to the GearTree mounting system. Made from high-strength aluminum alloy, features a 5/8-inch stud on one end, and a 5/8-inch receiver at the other end. This enables them to be either used on their own or daisy-chained to form a longer arm (We do NOT recommend daisy-chaining more than three). High Load-Capacity Made from high-strength aluminum alloy, GearTree 2747 basic extension grip arm can take loads of up to 20kg, which is more than enough to satisfy the need of most users. Stackable Extension Arm Featuring 5/8-inch stud at one end, and 5/8-inch receiver at the other, the Geartree 2747 extension grip arm can be stacked or daisy-chained together to form a longer arm. Up to three of the extension arms can be stacked and used to extend various types of equipment to broaden the shooting range. (Please Note: stacking more arms will reduce overall load capacity. We recommend stacking no more than three). Instructions It is designed to be used along with a clamp with 1 mounting point, a clamp with 3 mounting points, triangle extension arm. The mounting point at the end of the arm fits the 15.8mm stud. Remove all loads from the arm before installing, removing or adjusting the arm.Insert the stud at the end of the arm into the clamp’s mounting point, and tighten the locking screwMount the equipment on the 15.8mm’’ mounting point at the end of the arm, and tighten the locking screwPackage Contents:1x Basic Extension Grip Arm1x Locking Screw1x Jack Bolt1x H3 Hex Key2x Magic Strap