Wall Sticker Shop's Wall Stickers are made from high quality non-toxic vinyl and are specifically made so that they can adhere to internal, painted plasterboard walls. They are also made so that it is possible for them to be moved and removed without damaging walls.  They stick on easily and peel off gently. However we are not able to test every wall or surface, or type of paint, so we cannot guarantee that there will be no damage.  By following the guideline in  What surface can Wall Stickers be applied to? we believe you will be very happy with the ease and gentleness of our great room defining products.