VEVOR Watercraft PWC Dolly Boat 454 kg Capacity Jet Ski Stand Storage CartProduct Features High Load Capacity This jet ski cart features a steel structure with a 1. 4 inches thickened tube diameter and a load capacity of up to 1000lbs. The I beam base structure ensures stability, effectively avoiding deformation, and remains steady even with long term use. Durable Nylon Wheels The nylon wheels are highly durable and load bearing, enhanced with carbon steel brackets and ball bearings for improved flexibility and durability.