No interfacing used, a convenient size for a quick trip, lots of gathers. Round and cute! Height in the middle 23cm x Width at the widest part 33cm Plastic ring 13cm (inner diameter 11cm), lightweight If items can be combined for shipping, ¥100 off for 2 items, ¥200 off for 3 items. Please comment before purchasing. Since I haven't taken a pattern, the size of the bags of the same shape will vary. The props used for taking the photos are not included. Please read the profile to prevent any trouble. Thank you very much.