Adhesive Hanging Plate Kit by Studio Décor – Self-Adhesive Wall Mount for Mirrors - Glass - or Aluminum Panels - Hidden Mount Design - 6 Sets

2.75" x 2.75" (6.9cm x 6.9cm) approximate assembled size 13 lb. (5.9 kg) max weight capacity 6 sets Ideal for mirrors, flat panels or artwork The hanger is designed to be hidden when attached to the back of a mirror, flat panel, or artwork Not suitable for rough, porous, or textured surfaces such as wood, MDF, plaster or concrete