In Düsseldorf's seventh district, the Hotel Niu Seven opened in 2022. A house that sees itself as a visual homage to the rockabilly era: sharp, straight-lined and curved shapes form a harmony within themselves. Colours reminiscent of ice cream convey a retro touch. To ensure that guests can enjoy this look in a relaxed manner in every respect, ultra-modern BetteUltra shower trays can be found in the bathrooms.