Soft kettlebells for indoor kettlebell training and group exercise classes. This exclusive Power Systems® design provides all the function of a regular kettlebell but through it's new design, Kettlebell training will take on a whole new twist. The new soft shell design, of the GymBells™ , is much safer and allows the kettlebells to be used indoors without damaging floors. This full body training tool is ideal for beginners. Durable vinyl shell attached to a nylon strap with padded handle. Color: Black.