The Jillian Michaels Vinyl Kettlebell Set helps you get the most out of your strength and cardio workout. One 15 lb. kettlebell, one 10 lb. kettlebell and one 5 lb. kettlebell in a comfortable, ergonomic design allow you to chose your intensity level, and the included instructional DVD helps get you started. The set comes with an exercise chart to help you track your progress and a tray to store the kettlebells when not in use.