Dana dolly, comes with stands, 75mm and 100mm ball mount, support, and 15' of rails in 5' sections. The rails are connected by wooden dowels. They are very rigid, with very minimal bump when rolling over any grooves. Here is another Dana Dolly package in case this one is booked: Dana Dolly (Hi-Hat) 6X 5' Rails & Two Combo Stands ($39) - https://www.sharegrid.com/losangeles/l/133472?type=rent The tripods I recommend that can be mounted to this Dana Dolly Include: Sachtler SB 8 ($39) - https://www.sharegrid.com/losangeles/l/133862?type=rent Vinten Tripod with E-Image Head ($19) - https://www.sharegrid.com/losangeles/l/80355?type=rent Alternative Dana Dolly / Slider Packages include: Dana Dolly 5'-15' Slider Package with Tripod Head ($50) - https://www.sharegrid.com/losangeles/l/133471?type=rent 2' DSLR Slider with a Manfrotto Tripod ($20) - https://www.sharegrid.com/losangeles/l/86546?type=rent 2' Fotodiox Slider by itself ($10) - https://www.sharegrid.com/losangeles/l/86544?type=rent I RECOMMEND USING A LIGHT STAND/20" C STAND WITH SUPPORT BRACKET TO SUPPORT CONNECTED TRACK