Fully customized booklet includes full color imprint on both sides. This unique product allows you to further your promotional outreach by adding a coupon, QR code, website and much more! Pick your option of a single or double fold booklet. ***Samsung S8 / iPhone 8/Plus and newer phones with the back glass surface. These phones are made of a glass material and the adhesive glue will not work on this material. For this product, a case must be used if the phone has a glass back surface.