Dual jaw lockout add versatility to your lockout program by combining two hasp sizes in one. The hasps allow for up to six workers to lockout at once. Works on fuse and switch boxes as well as air, steam and acid valves. Also works on control units and levers. Two hasp sizes (one on each end), 1-1/4 x 1-3/4 inch or 3/4 inch round.