Electric Circuit Lock. 
 Body, Circuit Breaker and Rings Materials: Brass 
 Body: Steel 
 Nickel silver and stainless steel standard finishes (Ø19, Ø22) satin nickel; Standard brass finish (Ø29) chrome nickel matte; Brilliant brass; Chrome Nickel Special Finishes (Ø29) Antique Brass; An antique bronze cylinder mechanism with a unique, high precision
 Mul-T-lock pin system. 
 Classic cylinder platforms; Interactive +; MT5® platform for switch locks Ø22 / Ø29