Fantastic very adaptable 1 1/4" speed rail dolly with many configurations. You can build it 3 different ways and by adding longer speedrail from the grip trick otherwise it is either 4', 6', or 8' long in the portable setup you can ship anywhere. Setups: 1. Use 2 junior stands for support 2. Use 4 speedrails for support. 3. Use 1 tripod (Sachtler or Mitchell) in the center for lighter loads. Comes with all the accessories you need for 100mm, 75mm adaptor including bolts, washers, dolly with eight wheels, cheese plates, et., al. See pictures