Descriptions: This circuit breaker lock is made from sturdy reinforced nylon and chrome plated brass screw. Coming with locking screw, can lock conveniently by itself without tools, and with wide application, suitable for medium circuit breaker (handle width is 20mm). Features: This circuit breaker lock is made from sturdy reinforced nylon and chrome plated brass screw. Comes with locking screw, can lock conveniently by itself without tools. Wide application: suitable for medium circuit breaker (handle width is 20mm). Unique U shape stainless steel insert plate, can ensure there is no swing after locked. The appearance is simple and novel, the structure is effectively strengthened, carefully equipped with the bending screw. The convex block of lock can make positioning circuit breaker easier and more accurate. Man-machine engineering thread, the thread on the screw, can make the rotation screw easier. Specifications: Material: metal + nylon Color: red Size: 6 x 4 x 3.5cm/2.36 x 1.57 x 1.38inch Suitable for: lock shackle7mm Weight: 30g Package Included: 1 x Multi-Function Circuit Breaker Lockout