Whether classical style or skate skiing, this system allows your dog or dogs to exercise while you enjoy a fast-paced wild ride or a calm glide through snowy trails. Just attach around your waist and attach to your dogs and you're ready to go. Two tow lines clip to your dogs' X-Back Harness. The belt attaches with a quick release clip so you can detach from dog fast if need be. Out of all the things we test and try, we've had the most fun with this!