Girls dresses size 2-5 are short sleeves. Girls dresses size 6-12 are three quarter sleeves. Dress lengths size 2= 18.5 inch size 3= 21 inch size 4= 22 inch size 5= 25 inch size 6= 27 inch size 7= 29 inch size 8= 30 inch size 9= 32.5 inch size 10= 35 inch size 12= 36 inch