The MULTI-BASE is machined out of Aircraft Grade Aluminum alloy and is Hard Coat Anodized for hardness and durability. The base is designed to perform multiple applications in conjunction with Paratech Rescue Struts. Features: Claw-like wedge on the end to receive a 3/8" (10mm) chain to be held securely into place; 90 deg "V" end slot will fit over the edge and two cross drilled holes are provided to secure the MULTI-BASE on the corner with nails; the 90 deg "V" edge will fit in to the corner; either one of two arms in a shape of a cone provide additional, point loaded application to stabilize a Rescue Strut at a slight angle, close to the side walls; base has a 1.06" (27mm) cross hole for accessories such as a D-Ring for polyester sling. Weight: 1.9lbs (0.9kg)