Polyurethane foam mil-p-26514 type i, class 2, 4 bl/cu ft.Density items 2 to 4, bond to each other and to aluminum plateqq-a-250/11 temper t6 item 1, using item 5 adhesive mil-a-5092type 3, 2 handles, 4 setscrews, 15.750 in. By 15.750 in. By 10.500in. H, o/a