Dry Lining Box with large flange around front prevents slipping into cavity and matches profile of accessory front plate and tough yellow nylon lugs have large bearing faces for superior strength · · · 2 side knockout cable entries plus one 25mm base knockout · · Made of flame retardant thermoplastic · · Tough yellow nylon lugs have large bearing faces for superior strength · · 25mm base knockout plus 2 side cable entry points. · · Appropriate for fitting board thicknesses from 6.35-15mm