none is needed: simply turn the handle to open/close, and a small latches can be added for outward-opening invisible doors, boosting practicality It resists fading, maintains a smooth, comfortable touch, and withstands daily wear without structural damage, ensuring long term reliability and a sleek silver finish that complements any door decoration Featuring a flush mounted recessed design, the door handle sits perfectly with the door panel—none rubbing against the frame. This hidden works for living rooms, bedrooms, bathrooms, kitchens, balconies, and passageways It has double sided rotatable handles that tuck into the knob’s center when not in use, keeping a clean, minimalist look Crafted from 304 stainless steel, this Round Recessed Door great rust resistance. Great for high-humidity areas like bathrooms or kitchens, Manufacturer: MARCBUSE