Prime-Line Products N 7164, Closet Door Pivot Adjustment Wrench, Fits Johnson Bi-Fold Systems, 5/16 in. & 3/8 in This pivot adjustment wrench fits on Johnson Bi-Fold closet door systems and is used for adjusting bi-folding pivot hardware Wrench measure 2-15/16 in long and has a 3/8 in. open end and a 5/16 in. closed end Yellow zinc plated finish Stamped steel construction Fits Johnson bi-fold systems