Blank legend plate with different colour side for 30 x 40mm and 30 x 50mm legend holders. For the Harmony XB4 and XB5 range. Black/Red side ideal for white lettering, yellow/white side for black lettering.
For 30 x 50mm legend holders see ZBZ33, ZBZ35 (flush version); for 30 x 40mm legend holder see ZBZ32.