1. Window clings are brightly colored on both sides. The bright colors of the window clings are visible from both inside and outside. 2. Anti-collision Non-Adhesive Vinyl Stickers are perfect for decorating interior mirrors and glass splashbacks (please note that they do not cling to walls). It can be used in interior decoration but also in stores, offices, living rooms. 3. Window stickers are made of high quality static adhesive vinyl, durable, reusable and removable without leaving any residue. Apply them to the inside surface of the window, do not need adhesive. iv class="apm-fourthcol"> div class="apm-fourthcol"> iv class="apm-fourthcol"> Materials and tools 1. To achieve a perfect result, we recommend that you prepare, in addition to the stained glass sheet, a soft cloth, a stronger card (e.g. a bank card) and a spray bottle filled with water. Prepare the glass 2. Prepare the glass to be glued by cleaning it carefully with a soft cloth, thus removing dust and any impurities. 3.