When I first heard the name 'kettlebells', I imagined a thing that looks like a kettle, that you hit with a stick so that it rings like a bell. I was imagining what ancient society might have used such a thing, and for what kind of ritual? Well, it turns out that Kettlebells, with a capital 'K', are a form of small barbells, and the Kettleworx make of these come with DVD's that are instructional in the uses of this unique exercise product. A great part of losing weight by increasing exercise, and this is without it being required to stand outside in the cold. Handy to store, and proof that you don't need a big complicated exercise machine to get into good shape.