JSW magnetic Triple Honeycomb Spidey Hide in Stone. 
Gives your Jumper 3 choices of Hide away to choose from,  and you can also interlock 2 together
measures 3 inches across x 1 and 3 quarters deep.
Simply peel off the adhesive backing on the first magnet and stick it where you prefer on a clean dry surface . The second magnet attached to the Hide then attaches magnetically to it.