Stamped and welded aluminum construction is corrosion proof and designed to last. Molle compatible: Customize your basket with accessories designed for Molle mounting pattern. Compatible with basket bags designed for "137" baskets. Bolts directly to Old Man Mountain Divide, Divide Fat, Elkhorn, and Pizza Rack for a reliable and rattle free connection. Does not match the Divide MUSA or XL which have a bigger deck and hole pattern. Hardware included for bolting directly to all current OMM racks. Durable black powder coated finish. Weight: 499 grams, 17.6 oz Dimensions: Depth 13cm Bottom: 33 x 20cm Top: 38cm x 26cm Backed by Old Man Mountain's Lifetime warranty