Accessory type: corner cabinet for 135° angle folding doorThis product can only be used for wooden doors (not for aluminum or metal doors)Full Coverage Design: These hinges will have a straight arm, allowing your cabinet door edge to match the edge of your cabinet exactly.A major advantage is that a fully covered hidden hinge is fully adjustable.Depth, side and height adjustment is provided by these three screws.They can be adjusted to ensure that the door frame is completely hidden and fits perfectly.Soft Close: The soft close feature is one of the best indicators of hinge quality.The soft close feature prevents any annoying kitchen noise and extends the life of doors, cabinets and hinges.Clip on function: The clip on hinge is the easiest and quickest to install, no tools required.Ideal for doors that must be equipped with multiple hinges.This is because you simply align the hinge with the mounting plate and push it in with one simple movement, then it will be attached to the mounting plate.They require very little calibration, which makes work much easier when you have multiple hinges.