Attachment Type: Bolt On , Base Plate Dia.: 3 3/4" , Bolt Hole Spacing Length: 4 3/8" , Bolt Hole Spacing Width: 4 1/2" , Caster Dia.: 4" , Caster Size: 5" , Extended Height on Bottom Mounting Hole: 12" , Finish: Galvanized , Mounting Bolt Dia.: 3/8" , Mounting Hole Size: 1/2" , Mounting Hole Type: Slotted , Mounting Plate Thickness: 1/8" , Mounting Type: Top Plate , Number of Base Plate Mounting Holes: 4 , Pad Mounting Height: 1 1/2" , Retracted Height on Bottom Mounting Hole: 10" , Top Plate Length: 5 1/2" , Top Plate Width: 5 1/2" , Type: Foot Pedal