I bought two pair of these Contour Kettlebells and tried them out. I went to youtube and found a few videos on how to workout with keylocks and I just copied some of their movements. Let me tell you they worked great, I used them with my punching movements and elbows, they have a different feel then regular kettlebells. You can bring them closer to the sides of your head and move freely with them. By being able to bring them closer to your body you can really mimic the way you fight and keep them tight to the body.
About the only thing I don’t like is that the handle on the lighter contour kettlebells are a bit thinner but if you add some tape or put a pair of fat gripz on the handles they’ll be fine. My fists, wrists, forearms and elbows have benefitted greatly from using them and I know they will benefit you also.
By the way, the two pair I bought were 10 and 15 pounders, they really work great for punching. And as a bonus you can also do any kettlebell exercise you can think of with them.