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