Heavy Duty, Gravity Action Hinge, Designed For 34 To 138 Thick Swinging, Cafe Style Doors Weigh Up To 50 LB, Removable Ramps Are Included, Door Will Always Return To The Closed Position, With The Ramps Removed, The Door Will Remain Open On Either Or Both Sides, If Desired, Delrin Top Pivot Bearing Bottom Pivot Cam Ensure Quiet Operation Long Service Since There Is No Metal To Metal Contact, Ample InOut Lateral Adjustment For Perfect Door Alignment, Door Can Be Removed Without Taking Off Hinge Brackets, With Screws, 1 Per Pack