Made from Engineering plastic nylon PA injection molding , galvanized rustproof surface. Its lightweight, one-piece design easily and consistently installs without use of tools.

The stainless steel thumbscrew and curved blade provided tight grip on the circuit breaker handle SO device remains secure. The fixed cleat provides added physical blocking to prevent switch movement into"on"position.Compatible with a wide variety of circuit breaker handle shapes and sizes.

Product Feature:

a) Made from Engineering plastic nylon PA injection molding , galvanized rustproof surface.

b) Lock hole diameter: 10.5mm(2/5M).

c)Lock shackle diameter: 25mm(1")&38mm(1.5").