Everything You Need for 50 Strong Magnet Backed Labels: Designate and organize! Use as drawer and shelf label holders, bookshelf and file cabinet labels and more! The clear label protectors keep your labels crisp and clean. | Superior Quality Paper Cardstock Inserts: Made for multiple uses, each insert is heavy-duty cardstock that can be written on both sides with no bleed through. We’ve included 100 white cards with a bonus of 5 each of solid red, blue, green and yellow cardstock inserts to mark special items with ease. | Best for Office, School and Retail Business Labeling: Assign spaces and names for everything in your workspace or store, including price labels and tag holders, locker name and number tags and filing cabinet drawer labels. | Great for Industrial and Household Use: Name and specify everything in your shop, warehouse, home or garage! Use as tool box and breaker box labels, mailbox labels, metal shelving labels and parts bin labels. | Heavy Duty Magnet for Superior Hold: Each rubber “C” channel holder is backed with a powerful magnet, so it stays securely in place to maximize your organization efforts. Measures 3” long x 1” high x 0.09” thick.