Create easy removable labels with c-channel magnetic data card holders. Our c-channel card holders come in pre-cut packs and rolls depending on your needs. Rolls of c-channel holders can be easily cut with scissors down to the size you need. The unique “c” shape keeps the cards firmly in place and allows you to easily add and remove shelf label as needed. Discount Magnet offers a variety of lengths in 1″, 2″, or 3″ wide sizes for a variety of shelf label options.