Use Bosal's In-R-Form Plus Double-Sided Fusible Uptown Stabilizer with Auntie's Two City Bag Patterns (not included). Choose from three sizes to best complete your project, 54"x58", 36"x58", or 18"x58". This unique foam stabilizer is made with In-R-Form, laminated to naped tricot, and fusible on both sides. Ideally, this stabilizer is meant to be used with the City Bag Patterns, but they can be used on any purse pattern. Made in the USA.