Dividers Optional dividers fit snugly, horizontally across bins and are uniquely designed to allow for easy part labeling via individual label slots. All bins can accommodate up to 7 dividers. Extended Label Holders - simplify identification! Optional extended label holders are designed for larger bar code scanning. Label holders fit all Shelf Bins (except QSB100). Bin Cups Bin cups have a raised, slotted label holder for easy parts identification. The entire bin cup may be removed for easy part retrieval. Available in 2 sizes and 2 colors: Blue and Yellow.