Just how well a door closes or opens, and how "wide" the angle of access to the internal space is, is determined most of all by the hinge. The bulthaup b3 kitchen system now uses, for the first time, a new, ultra-flat hinge. It has a noise-attenuated stop which extends only minimally into the internal space and guarantees an opening angle of 105°. Access to the unit is thus made easier, and the internal drawers can be rolled out freely and without any obstacles.