Had these for about 2 months. Can't find any customer number to call for warranty.

Great quality. Would definitely buy again, esp at this price. These are epic.

Great quality but a little hard to unlock.

Casters work great to make a movable wood storage box for our firepit. Casters are large enough for heavy 800lb work center and glide with reasonable effort. Used them to made a portable platform for a 9000w harbor freight generator.

High quality sticky wheels with good traction. The wheel rolls smoothly. Swivel and brakes work great too.