Who said Canada do not sell caster wheel, eh? The VXB005150GBLB1 can move your large heavy object. Spinning on wheel that has 150mm diameter/5.906" inch. The wheel has a width of 53mm=2.087" inch. The caster dimensions heightwise is 195mm/7.677" inch. This wheel mounting is Top Plate with the dimensions of 100mm x 115mm and holes distance of 75mm x 85mm. Low drag was achieved by a Polypropylene core and Rubber core on a Polypropylene core and Rubber tire spinning freely with a Double ball beaing. Maximum load calpacity that could not be exceeded on each wheel, remember to add safety factor, when calculating the load capacity 551 lb with a Swivel and Center Brake type. Ambient temperature range is -40 to 180 F. FYI, you will need to buy the VXB005150GBLB1 in order to get one :).