There's quite a few slackline kits out there on the market, but it sure is easy to piece one together yourself. You'll learn quite a bit during the process, and you'll save a few bucks on your setup too. You can use an even simpler setup than shown here--if, that is, you have a team of people to help tighten the line. For the sake of demonstration we had just one person setting it up, and it's nearly impossible to get the line this tight by yourself without using a pulley. So that's what we did. The kit shown here is about...