Extra large, zipper-closing, foam-padded lens case with weather flap perfect for Canon and Nikon 70-300mm lenses. Quickly attaches to Tamron's Modular Accessories System belt or M.A.S compatible products or any belt.Dimensions:Internal: 3¾" in diameter x 6¾H (10 x 17 cm)External: 4¼" in diameter x 7½H (11 x 19 cm)Weight: 5.4 oz. (153 g)