9matlal alloy per qq-a-250/11 h32, finish: chromate per mil-c-5541 cl1 1a, 4.200 in. Lg, 2.200 in. W, 0.063 in. H, rubber pad 1, matl: per zz-r-765 cl 2a gr 50 color red, 1.500 in. Lg, 1.200 in. W, 0.063 in. H, both pieces bonded together per ps 83345me proc a