This wrench is constructed of stamped steel and comes in a yellow zinc plated finish. It is used to adjust the pivoting hardware of bi-folding closet doors and it fits Johnson bi-fold systems. This combo wrench features a 3/8 in. open-end wrench on one end and a 5/16 in. boxed-end wrench on the other. Use this combo wrench when adjustments are necessary on closet door pivoting hardware and some hard-to-reach pocket door hardware with 3/8 in. or 5/16 in. fastener head sizes. Each package contains one (1) bi-fold closet door pivot adjustment wrench. Fits Johnson bi-fold systems.