Beaverswood Magnetic Label Holders in Rolls - Beaverswood MLR4/5, These magnetic label holders from Beaverswood are supplied in 5m rolls so can easily be cut to the length required. They are ideal for use on shelving in warehouses, shops, offices and schools or any environment where labelling needs to be changed regularly. These magnetic holders are easier to move then adhesive-backed holders so can be repositioned quickly. Beaverswood Magnetic Label Holder 40mm x 5m Roll