[High Quality Material] These hinges are made of hard steel. Anti corrosion and anti rust, not easy to deform, strong and durable. Full buffer, good sealing effect, strong support force .The surface is painted, anti-corrosion and anti-rust,durable [Dimensions] 40N hinges can support objects up to 4 kg. The bracket can open the top cover to a maximum angle of 90 degrees [Stable Installation] Easy to install,the hinge has a metal mounting plate and screws, three-point positioning, and the installation is firm. You can also adjust the installation direction at will, both up and down doors can be installed [Hydraulic Hinges Use] Superior material made for the shaft, durable and practical.Plastic installing top, rotatable and easy to adjust.Silence and soft with cabinet doors close.Slow close and assisted lift to a toy chest ,stop wooden toy box lid from slamimg down when your children use [Application] Suitable for TV cabinets, hydraulic support, automatic expansion,drawers, kitchen cabinet doors, cabinets,wardrobes and other upturned support etc., Manufacturer: Bohaner