In H-technology with rosettes according to DIN 18255 and DIN EN 1906 made of stainless steel, matte brushed surface, consisting of: door handle model 271X in L-shape made of stainless steel (1.4301), base diameter 21.3 mm, with base guide and locking groove, with M5 threaded pin as additional fixation of the door handle with the square pin for optimal force transmission into the door leaf. Installation by simply snapping the door handles into the pre-mounted parts on the door. The locking can be released using a disassembly key. Rosettes 305.21X and 306.23X, substructure 305.21X in plastic-steel composite construction with black zinc/nickel surface for optimal corrosion protection, integrated lift module with spring support, usable DIN left and DIN right, to support the lock for a longer lifespan. Fixed rotating bearing of the handles with self-locking all-around locking and 5 mm bearing point as a maintenance-free sliding bearing with elastic compensation area to accommodate possible assembly inaccuracies. Concealed, loosening-proof screw connection with M5 stainless steel screws and sleeve screw combination as well as support pins that immerse into the door leaf. Rosette cover cap, round, made of stainless steel (1.4301), diameter 55 mm, 10.5 mm high, 1.5 mm wall thickness. Designed and tested for the object area, usage category according to DIN EN 1906 - Class 4 set, with square pin 8 mm, for door thickness 38-48 mm, handle length 150 mm, room set. Additional technical features: fastening system: H-technology.