Utilizing VXB004125TPR1F makes it feasible to pull and push items instead of transport Diameter size of the caster wheel has a metric standard 125mm which is equal to 4.921" inch with imperial units. The thickness of the wheel is 30mm or 1.181" inch. The caster dimensions heightwise is 155mm/6.102" inch. Mounted via a Top Plate that has the size of 93mm x 62mm and the holes distance of 73mm x 45mm. This caster wheel core material is Thermoplastic Rubber and has a Thermoplastic Rubber tire spinning over Ball bearing. Bearing in mind that every caster wheel has the load capacity of 220 lb with a Fixed type. Temperature range is -40 to 180 F. Buy our VXB004125TPR1F, we wish all the best.