The first image shows three items, not including the X, but there's a fourth item, black tights (in the last three images), making it a set of four. Also, the brand is listed as Uniqlo, but only the white leggings are from that brand. Additionally, the tights are slightly different in size (marked as 105), and the skirt has no tag, so the size is unknown. It's likely a 100 or 110. All items are secondhand and were received as gifts. My child has only worn the skirt a few times, and the other items haven't been worn at all. The leggings are made of a thick material, similar to tights. The skirt has three layers, including tulle, and since there's no tag, it might be reversible (as shown in the second to last image). These are secondhand items, so please understand that there may be some overlooked imperfections. Please refrain from purchasing if you are overly concerned about the condition.