LOOK AT ALL THE PICTURES TO SEE WHICH WHEEL THIS ITEM REPLACES. TOTAL GYM MADE TWO VERSIONS. THIS ITEM ONLY FITS ONE OF THEM. This is a set of 4 greatly upgraded replacement wheels with bearings for some of the Total Gym Models: 2000, 3000, some 3000 XL, and a few very early XL. Can be used on almost all other Total Gym models via M6 bolts. Please note that these will not fit if the wheels of your Total Gym have bearings sticking out on one side. Brand New and Never Used a set of four (4) Total Gym Replacement Wheels for models 2000, 3000, and more!

The outer diameter and the inner diameter of the wheel (White part) are 1.25" and 0.75".

The diameter of the thru hole of the bearing is about 0.25" .

Please note that these will not fit if the wheels of your Total Gym have bearings sticking out on one side