MS-1577 Size: 9/16" Features: -Metal cable staples.-Choose from two sizes for NM, BX, AC, MC, UF and other cables.-Recessed head drives faster and protects cable insulation.-Sharp pointed legs drive in straight, will not split wood.-Use for 3 conductor #10 amd #12, NM, BX, UF, and other cable.-50 Per card. Dimensions: -9/16" Dimensions: 5.5" H x 3.75" W x 1.5" D.-1/2" Dimensions: 5.5" H x 3.75" W x 1" D.