Beaverswood magnetic label holders in rolls beaverswood mlr310 these magnetic label holders from beaverswood are supplied in 10m 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 30mm x 10m roll