Adapter ring for central piece 50 x 50 mm Q.1/Q.3 polar white, velvet. Adapter ring for central piece 50 x 50 mm. For central pieces with external dimensions 50 x 50 mm and SCHUKO® socket. For central piece in accordance with DIN 49075. Flush-mounted installation, surface program. Material: plastic, thermoplastic, shatterproof, halogen-free.