A perfect addition to the IKEA Alex cabinet. Designed to hold 240 floss bobbins in each drawer. Custom designed to fit the 26" IKEA Alex cabinet. Since the drawers do not open all the way, these inserts are only slotted for the drawer opening. Two different styles available. Standard DMC bobbin or the thick acrylic style bobbin. Standard DMC Bobbin style? Use the thin slot insert. This style slot will hold both the thin plastic DMC bobbins and the cardboard style bobbins. These are typically found at your local craft store. Thick acrylic bobbin style? Use the thick acrylic bobbin insert. These bobbins are typically 1.5-3mm thick. These are typically purchased either from us or from a 3rd party online. Additionally each insert is backed with 3m tape to secure the insert into the drawer. Please reach out for any questions or for custom size/shape inserts. Listing is for foam insert only based on the number of inserts you select. Drawer System and bobbins in images are for reference only, they are not included