You are the equivalent to the Mad Bomber, Deidara. You gain the Explosion Release kekkei genkai, and knowledge of a kinjutsu that allows you to make your palms gain mouths.
The reason Deidara had these mouths was to knead his Explosion Release kekkei genkai into the clay, allowing the clay to explode however he wanted.
You can do similar. Your explosions can be as small as molecules with enough training and effort, and you are able to grow explosive clay up to ten times its size and the opposite. All you need to do is shunt chakra into it while it is in your hand and it will grow or shrink.
Better, higher quality clay will influence your explosions even more.
You are an expert in demolition as well, knowing just where and when to explode things, and can use your explosion release in a form of martial arts.