A Slackline is a nylon rope that uses tension to suspend itself above ground. Slacklines are usually tied between two trees while the user walks across the line. Slacklining provides a daytime activity as user vision weakens after the sun goes down. A LED slackline allows users to practice tight roping at night. The lights let the user know when they perform well. The slackline uses a three axis system to determine how much the user moves. The slackline senses how much the user shakes in three dimensions and then relays it back to the LEDs. If the user shakes or bounces, the LEDs light up and flash accordingly. Overall, the LED slackline helps the user to perfect their tricks and tight roping capabilities in the dark!