Empis heavy duty floor dolly features heavy gauge steel for strength and 4 industrial swivel casters for stability. Use for all air cooled vw motors It can be used for 1100cc through 1600cc based Type 1 2 and 3 motors. The outside dimensions are 11.5 inches wide by 12.75 inches long and 6.5 inches high. Type 4 engines (1700-2000cc) will not fit.Heavy Duty Floor Dolly for Type 1 VW Engines