The size is 4T (about the same as Uniqlo size 100). The monkey set includes two short-sleeved shirts and one pair of pants (with name written on them). The crab set includes one short-sleeved shirt and two pairs of pants (the name tag has been removed, so it's considered nameless). These were used as pajamas in our house. As shown in the pictures, the monkey set has some stains. #Tonton'sKidsClothes100