Hinge, cabinet hinge, concealed hinge, furniture concealed hinge,buffer concealed hinge smooth close concealed hinge The material:cold-rolled steel Max weight:8kg/2pcs Door angle:110degree Cup diameter:35mm Cup depth:12mm Max door thickness:18mm The hole distance:48mm Available for:all kinds of wooden cabinet doors and four-hole baseplates,full-overlay, two way force 100.000 times switch 10-20 years' normal use 48 hours salt spray test rust less than 0.1 square millimetre Advantages Silent when the door closed automatically It enjoys perfect function of bump-proofed and muffle This kind of hinge adopt the theory of compounding the small oil hydraulic bar, making the oil hydraulic bar can be flexed freely to make the hingeopen and close. Packing details firstly2 pcs in 1 small bag, then 100 pcs in 1 carton