Nuk3y Commercial Grade Ball Bearing, Removable Pin Door Hinge 4-1/2 x 4-1/2 -- 3- PACK (Satin Chrome) 4-1/2" x 4-1/2" Ball Bearing Commercial Door Hinge Steel material with Steel barrel Ball Bearing Door Hinge For Smooth Opening & Closing Commercial Rated Door Hinge 0.134" Gauge Removable Pin (R)  In-Swing Doors