PORTAMATE PM-7004 WHEEL UPGRADE KITQuickly and easily add more stable jobsite maneuverability to your early model, single wheel PM-7000 with the PM-7004 dual wheel upgrade kit. The dual 8-Inch diameter wheels make navigating through the jobsite an easy trip, rather than an added project.*Kit includes two 8-Inch wheels and hardware*increases the portability and sturdiness of your old style Portamate miter saw stand*no drilling required, easily snap and secure these wheels to your existing miter saw stand