LID STAY SLOW CLOSING -- Lid stay support built-in hydraulic dampening device. Doors and lids will come down slowly and softly which eliminates slamming doors or smashed fingers.COMPACT DESIGN OF LID STAY HINGE -- The compact design allows for installation in tight fit areas. The lid hinges supports opening the lid at a maximum Angle of 105 degree.KEEP LID HINGE STAY OPENING, WIDE USAGE -- Never worry again about having to prop the lid open. This lid support will hold the lid open until you are ready to close. This lid stay is deal for upward opening flaps, such as toy boxes and vanity lids, vertical cabinet doors and storage box, cabinetry, piano or butt hinges.STURDY LID STAY WITH SOFT CLOSE-- The Lid stay hinge is made of nickel plated steel and plastic, and per lid-stay support the range of door weight 6-10 lbs, Height 18-19 inch.EASY TO INSTALL LID SUPPORT-- Updated manual can be downloaded in Amazon page.Easy to follow installation instructions ensure a perfect install the first time! Lid stay can be installed on the left or on the right.