We recommend installation in a 60 mm deep installation box. Combined support ring can be converted into a support bar by breaking off elements. Without claws, for screw fastening. With 20 screw contacts. To be completed with: Central plate for telecommunications connection boxes TAE JOY 266010, JOY 266014, JOY ELG2660111, FASHION/RIVA/SCALA 206010, FASHION/RIVA/SCALA 206014, FASHION/RIVA/SCALA 2060111.