Help improve your physique and tone your muscles with Stott Pilates power pack toning balls. They help improve the flexibility, stretch and strength of your entire body. These 1 lb. toning balls are suitable for working on your lower body, core muscles, upper body, oblique and other areas. They have a non-slip surface for improved stability. These vinyl toning balls offer high resistance and balance to support you in your exercise activities. Come with a bonus easy street poster and an Amazing Tone DVD.