PROAIM Heavy Duty Portable 12ft Straight Professional Aluminium Tripod Dolly Rail Track System For DSLR Video Camcorders + Carry Bag (P-TRK-12) 27.5 inch center distance with industrial plastic feet; 4ft sections, 6 connectors, 20 wedges and 2 stoppers

400KG TRACK FOR DOLLIES AND JIB CRANES: Track holds up to 400kg/882lb total weight. Use with camera dollies, jib cranes, and standard dolly setups. 32mm hollow aluminum rails with 27.5-inch center-to-center distance HIGH-GRADE ALUMINUM RAILS + PLASTIC FEET: Track rails made from high-grade aluminum alloy in a hollow-pipe profile. Feet made from industrial-grade plastic 12ft IN 4ft SECTIONS, 6 CONNECTORS INCLUDED: 12 feet of track assembles in 4-foot sections. 6 connectors included (4 standard plus 2 extra). Multiple tracks can be joined together to extend the length 20 WEDGES AND 2 TRACK STOPPERS: 10 blue wedges lift the track for smooth dolly moves. 10 black wedges level the track on uneven and rocky surfaces. 2 track stoppers included. Carrying bag included Trusted globally since 1997: PROAIM gear is used on productions in 90+ countries by 50,000+ filmmakers, DPs, and rental houses