A properly designed kettlebell. The one below is what I use, but other companies also make good ones. The weight transfers around your arm naturally, it's very

A properly designed kettlebell. The one below is what I use, but other companies also make good ones. The weight transfers around your arm naturally, it's very hard to injure yourself using it. Two indications of a good one are: handle is not flat, and pounds are in 18 pound increments (this comes from an old Russian unit of measure called a "pood".) https://christiansfitnessfactory.com/cff-black-monster-russian-kettlebells.html https://christiansfitnessfactory.com/cff-black-monster-russi...