Eleven-inch on center holes accommodate standard double tank bolt kits and holes along the perimeter of the plate allow for mounting lights, pony bottles, lift bags and other accessories. One-inch and two-inch slots along the bottom permit diver's choice of crotch straps. Two 3/8-inch slots along the bottom are designed to fit screws for attaching lift bag sleeves, sidemount butt plates or other accessories. Two-inch slots along the center allow single-tank divers to use cam straps without a single tank adaptor. All edges are beveled to eliminate sharp edges and prevent abrasion to harness webbing. Anodized aluminum.