Sold in sets of 5 kits. Kit includes flexible plastic insert, 3 cords for binding and closure, and a QR code for additional digital instructions, tips, and videos. Cord Color options: Black, Red, Ivory, Navy, Teal, or a Mix (other colors available by request) To make a "kit" for your customers, you could add: half of a Fat Quarter for the cover half of a Fat Quarter for the lining some coordinating threads or embellishments a pattern, stitch guide, or some stick-n-stitch motifs Here is a method of making your own fabric cover using a flexible plastic, precision cut insert. The insert provides rigidity for the Cover with flexibility where it's needed. The insert and the necessary elastic cords are included in this kit, along with digital access to detailed instructions (downloadable) for constructing and personalizing your own cover. Sized to fit up to four A5 notebooks of your choosing. (approx. 5.5" x 8.25", or similar "half-sheet" size) (not included) Elastic cord is used for the binding (2, inside) and closure (1, outside).