Features and Benefits: Padded removable side rails Easy on/off design and fully adjustable Quickly adapts to most floor jacks with removable saddles Hang bumpers store glass many other uses Fits jacks with saddle hole dimensions of 1.17 - 1.19 One man operation - geatly reduces labor time. Padded remoeable side rails. Easy On/Off design and fully adjustable. Quickly adapts to most floor jacks with removeable saddles (jack not included). Fits jack with hole diameter 1.17 in. to 1.19 in. (30mm). .