Premium Steel Material: This strong and sturdy spring hinge is made of high quality steel with invisible design, anti-rust and anti-corrosion, hard and sturdy, simple and practicalSoft close design: great safety solution for heavy hinged lids, lids will lower slowly and gently to prevent broken fingers, spring loaded hinge is abrasion resistant and toughto deform, its maximum extension angle is 80 degreesWide Uses: The durable door hinge is widely used for cabinets, cabinets, cupboards, cupboards and doors, also suitable for folding beds, folding sofas, lifting doors, cabinet doors,etcHolds the lid: The lifting spring hinge will hold your lid open until you push it down, so you'll never worry about having to hold the lid open again, very convenient to useEasy installation: the hinge is easy to install on the cabinet door, each package includes 2 spring hinges