These Rest Bags high-quality leather and Cordura construction. The traditional leather top surface provides a smooth, non-marring rest, and the Cordura sides will not stretch or sag to maintain the bag's original shape. Material: 5 oz. Top Grain Cowhide and Cordura Nylon. Dimensions: Base = 7.4" long x 5.3" wide, and 6.9" high. Ears = 3.6" long x 2" thick x 2.9" high. Made specially to work with the Caldwell Rock Deluxe Front Rest with the higher 8" cener post. Base and 2 "ears" are separate compartments that need to be filled individually. Furnished empty to allow shooter to fill to their own preference. It will take approximately 7 lbs of media to fill this bag.