The 3M Command adhesive strips are ideal for hanging paintings, canvases and other objects. This package contains 4 x 2 strips. Attach 4 adhesive strips to the wall (one strip for each corner of the painting) to achieve a total load capacity of 7.2 kg. You can then easily attach the frame to the adhesive. Once you hear a clicking sound, you know the strips are locked. The advantage of this mounting adhesive is that you can remove the painting from the wall at any time and hang it up in another place without leaving any adhesive residue.