The kettelbell itself is hard to explain, so I have provided you guys with a picture. The most important thing you have to remember when you are working out with kettlebells are deceiving. It dose'nt matter if you can bench press 300 pounds, kettlebell tranning is a totally different type of exercise.
The kettlebell has a handle that you hold on too, which in this case is different from the bar bell on the bench press. When you bench, the weight is evenly distributed on both sides of the bar. This puts tons of stress on your wrists.
In kettlebell tranning you are taught to keep you wrists locked as you lift the bell. This give more opportunity to get stronger due to the fact that you are using your whole body instead of just your arms.