This system includes the TH1000 Vertical Jump Measuring Device and a Floor Stand. Just pick the color choices you want. You can also add an Extension Tube to this system. Adding the extension tube to the top of the Floor Stand will raise the TH1000 another two feet off the ground. This will ensure all athletes vertical jump heights can be measured safely. Adding the Extender to the Floor Stand will move the TH1000 out 17 inches away from the Floor Stand. This will allow more room for jumping. Adding the Extender also allows you to locate the TH1000 above a Vertimax platform or force plates to give the athlete a target to hit. When using the Extender, additional weight should be placed on top of the counterweight.