Using SKIN modifier to move a mesh with bones

I used the Skin modifier tool to turn the mesh into an animatable state, where it behaves under the rules of the bones you apply to it. This can be a tricky job if your mesh is not correct or clean enough. Simple is best, and the use of leaving lines of the mesh on joints, making the bending and flexing more realistic.

The image shows the skin modifier open in the side pannel, and the bones in the scene with the skin hidden.