Richie House Little Girls' Sweet Princess Dress RH2262 Size 3-7 100%polyester Lining:100%cotton A size 4 is for the average 3-4 year old girl, a size 6 is for the average 5-6 year old girl, a size 7 is for the average 6-7 year old,etc This sweet frock pulls on easily overhead to provide a prim and pretty look for little ladies,Short sleeve dress style with rib at cuff,waist with flowers to add some girly to this sweet dress Little ladies will be the belle of the ball when they don this darling dress. Its bright colors add some girly flair, and its light materials give it effortless twirlability