Brass-plated Desk Lid Hinge Supports are used to open and provide support to desk lids in open flat position. Use on straight front and slant front desks where desk lid drops down to provide flat writing surface.
These hinge supports are intentionally made to not-open-flat when held in your hand.
Once installed, the weight of the desk lid adds leverage to the hinge support. This enables the desk- lid to hang properly and not sag.
Support should be mortised into bottom of desk interior and writing surfaces. Has a 180 degree throw once installed.