Review on Dr Luck A21UBB Polyurethane Bearing Capacity by Richard Cunningham

Really easy launch and change of direction. I put them on top of a 600lb kombucha tank that I have to move around quite a bit to replace the regular polyurethane wheels (not a particularly tough version). These have developed flat spots and are extremely difficult to move or change direction despite being designed to support weight. I will be buying 5 more of these sets to replace other reels!