Rolling Cantilever Slide Gate Mini Roller Hardware Set, For 2-3/8" post, 1-5/8" Chain Link Fence Gate Frame. Includes 4 MINI Cantilever Rollers that Fit on 2-3/8" Posts, Horizontal Rail 1-5/8" Gate Roller frame size 2-3/8" nominal Post outside diameter exactly measures 2.375" OD