Richie House Girls' Allover Sleeveless Print Dress with Waist Tape Size 6-12Y RH2566 100% Cotton A size 6 is for the average 5-6 year old girl, a size 8 is for the average 7-8 year old girl, a size 12 is for the average 11-12 year old kid,etc This elegant dress has lovely butterflies print,waist with belt to adjust Beautiful sleeveless dress has pretty butterfly print and lapel collar An exquisite princess dress for your girls will make her get notices at the special event she attends