Har-Tru has developed the first set of temporary lines specifically for Har-Tru courts. The temporary lines can be installed by one person in 5-7 minutes.The 36' temporary lines come in red, to match the red ball used on 36' courts and to show up sharply against the Har-Tru green. The system comes in two pieces, an outside rectangle and an inside I. The pieces are attached together with Velcro and secured to the court surfaces with just 12 nails. Nails are included and lines are 1 wide.