Caldwell Universal Rear Rest Bag - Unfilled Constructed of high-quality leather and Cordura Base = 7-2/5-Inch long x 5-1/3-Inch wide, and 2-9/10-Inch high Ears = 3-2/3-Inch long x 2-Inch thick x 2-2/3-Inch high Unfilled weight = 1/2 -Pound Unfilled bags should be filled with dry silica sand or other inert fillers