Metal Junction Knockout Box 1 Gang ,2 Gang ,1+1,1+2,1+1+1,1+1+2 Metal Junction Knockout Box1 Gang ,2 Gang ,1+1,1+2,1+1+1,1+1+2Deep: 16mm,25m,35mm,47mmThickness: 0.5mm,0.6mm,0.7mm,0.8mm,1.0mm,1.1mm,1.2mmFittings: with iron screw with adjustable lug with brass terminal Metal Junction Knockout Box