This model is designed to withstand the strongest stresses relative to its small size.
It is generally installed on jacks in garages because the models sold as standard are not strong enough. Manufacturers of jacks in certain regions of the world care little about the durability of these products and may endanger unsuspecting users. This model can withstand a high load with its castor, double ball bearing, and polyurethane tire. The steel thickness is 3 mm with a galvanized coating to prevent corrosion. The presence of a nyl'stop nut prevents the wheel from unscrewing over the long term due to vibrations.
The brake on the wheel has a double locking mechanism, meaning it locks both the rotation of the wheel and the rotation of the caster around its vertical axis.