Adaptable Track System WW300 Weight: 11.34kg/3mApplicable Height: 2m to 3.3mTrack Material: Aluminum WW450 Weight: 14.3kg/3mApplicable Height: 2m to 3.3mTrack Material: Aluminum WW500 Weight: 14.42kg/3mApplicable Height: 2m to 4.5mTrack Material: Aluminum WW600 Weight: 10.5kg/3mApplicable Height: 2m to 6mTrack Material: Aluminum WW700 Weight: 26.28kg/3mApplicable Height: 2m to 6mTrack Material: Aluminum WW800 Weight: 22.23kg/3mApplicable Height: 4m to 12mTrack Material: Aluminum WW1000 Weight: 30.32kg/3mApplicable Height: 6m to 15mTrack Material: Aluminum WW2000 Weight: 42.28kg/3mApplicable Height: 6m to 20mTrack Material: Special Steel with Coating Track Types Single Roller Double Roller