easy, practical and convenient, every where you may. you can be in shape with Dumbbell Exercise application. since I love Dumbbells and i don't have enough time, i decided to do exercise with Dumbbells so that i now have a great bodyshape. the very pictoral application dynamically teaches you how to do exercise simply by the use of two dumbbells. Have a good Dumbbell Exercise. i would be happy if you contact me by my email;Tehrooni@ymail.com