Royal Integral: the perfect symbiosis between mirror cabinet and interior architecture KEUCO points to new directions in bathroom interior architecture: completely flat and level with the wall, the Royal Integral mirror cabinet blends unobtrusively and harmoniously into the room architecture. Architecture and functionality fuse into one. On the outside a mirror surface flat with the wall, on the inside generous storage space. High quality materials and the utmost precision in workmanship demonstrate the quality standard of the market leader KEUCO – down the last detail.