Solid-Brass Build: Precision-cast from polished, high-grade brass, these concealed hinges deliver rock-solid strength, a bright mirror finish and excellent rust resistance for long-term durability. Compact Dimensions: 22 mm / 0.87 in high, 10 mm / 0.39 in barrel Ø, 6 mm / 0.24 in leaf gap when open—ideal for light-duty, space-limited applications. 180° Hidden Swing: Concealed barrel design allows 0-180° smooth opening. Once fitted, the hinge is invisible from both sides, keeping boxes sleek and hardware-free. Easy Installation: Pack of 8 brass barrel hinges. Simply drill a blind hole, press the barrel into the pre-routed recess and secure. If looseness occurs, re-tighten the side set-screws for a firm fit. Wide Use: Perfect for jewelry boxes, folding tables, small cabinet doors, crafts, wine cases and other light wood / plastic / thick-glass projects. Not recommended for vertical or heavy-load doors., Manufacturer: LuLobtg