No Adhesives: Glue-free static cling glass window film, the glue-free design significantly reduces chemical release, applies in minutes. Easy to Remove: Fresh glass static film! After removal, there is no residue left and the film can even be reused. Energy Saving: Keep the heat in for winter comfort and keep it out in summer. Control the heat and block 96% of UV rays. Material & Size: Environmentally friendly vinyl PVC, waterproof, the thickness is about 0.2mm. Circle size: 20cm. Can be cut to your window size as you like. Technology: The decorative window film is digital printing, the color is clearer than traditional printing, the authenticity is good for a long year under the sun.