Being a slacker isn"t always a bad thing. Slacklines, like the Brand 44 Slackers 50 ft. Slackline Classic Kit with Bonus Teaching Line help improve core strength and balance all while walking just a few feet off the ground. Follow the directions and your slackline will be set up in 10 minutes, seriously. All you need to do is attach the bottom 2-inch slackline between two trees, then do the same with the teaching line. After that, get your balance act going by walking across the line, engaging your balance, core, and legs in a challenging, yet fun, activity. And for those of us who may be a tad uncoordinated, a bonus teaching line is included to help keep our balance. Slackline kit with 2 sets of 50-foot lines to attach between 2 trees. One 2-inch wide line for walking. One 1-inch "teaching" line above for balance. Carry bag is perfect to keep for storage. Ratchets are easy to use and have safety locks. Lines have reinforced loop slings. Easy-to-follow instructions with pictures.