The PSL-7 High-Security Short Shackle Padlock features a solid aluminum body with an anodized aluminum finish, which provides improved durability and corrosion resistance. The padlock can be ordered with various keying options (keyed-alike and master-keyed). The six-pin cylinder design allows for a large number of key change options. Arm: Steel Body: Aluminum 0.25" (6.4 mm) shackle diameter. Body: 1.5" x 1.6" (38.1 mm x 40.6 mm) Shackle: 0.79" x 1.04" (20.1 mm x 26.4 mm) Color Red. 1 per package