【Swift Dolly System】Achieve super smooth camera tracking movements with this three-wheeled dolly system that supports loads up to 159kg/350 lb 【High-Quality Construction】Made of high-grade aluminum, the dolly is robust yet lightweight, featuring track wheels with sealed bearings for super-smooth movements 【Versatile Usage】Works on straight and curved tracks, fits through most doorways and supports jibs and standard tripods 【Easy Assembly and Transport】Includes 12ft straight tracks, lightweight and quick to set up, with blue feet and black wedges for stability on various terrains Includes Storage bag; 100% customer satisfaction guarantee; Buy with confidence