Figure: Coo Models 1/12th Body w/ Armor and Wrist Pegs

Approx. 5.27" tall (measured from the top of the neck peg to the end of the ankle)
The end of the neck peg is approx. 0.18" wide
The end of the wrist pegs are approx. 0.10" wide
The end of the ankle peg that originally fit inside the socket was approx. 0.14" wide (pegs not included)

You may not be able to remove the chainmail (not real metal) or the shirt with damaging them
The arms may not have great mobility due to the clothes