Each metacarpal consists of a base, shaft along with a head. The medial and lateral surfaces in the metacarpals are concave, allowing for attachment on the interossei muscles. Slim metal pins are inserted through the pores and skin to stabilise uncomplicated fractures by Keeping the bone fragments in good alignment. https://www.theorthopaedicandpainpractice.com/what-are-the-different-bones-found-in-my-hand/