No interfacing used, a convenient size for a quick trip, and lots of gathers. It's round, plump, and cute! Height in the middle: 24cm x Width (widest part): 38cm Light beige plastic ring: 13cm (inner diameter 11cm), outer pocket (with plastic button) If items can be combined for shipping, a discount of ¥100 for 2 items, and ¥200 for 3 items will be applied. Please comment before purchasing. Since I haven't taken a pattern, the size may vary even with 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.