Q: What kind of surface can the magnetic wall sticker be applied to?

A: Magnetic wall sticker can be applied directly to any smooth surfaces, such as glass, metal, wood and any smooth wall. Avoid bare concrete, unpainted plaster, spackling and stucco.

 
Q: For the magnetic wall sticker, will the glue adherence decrease?

A: High levels of ambient humidity may affect the adhesive of this product to your wall.