a.Made from rugged reinforced nylon and chrome plated brass screw.

b.Comes with locking screw, can lock conveniently by itself without tools.

c.Widely used, suitable for button circuit breaker protector, as picture (handle width≤20mm).

d.Unique U shape stainless steel insert plate, can ensure there is  no swing after locked.

e.Can be customized stainless steel brand.