The buttons are a complete set of 11 x large 22-23mm and 4 x small 17-18mm brass King's crown general service buttons. The buttons will fit both the 1939 pattern and 1940 pattern greatcoats which require: 8 large buttons to the double breast front closure, 3 large buttons to the adjustable rear belt, 2 small buttons to the shoulder epaulettes and 2 small buttons to secure rear vent closure.