- Size:18x18 inches (45x45CM). Glides smoothly and allows easy insertion and removal of pillow inserts. 2. Material Composition:50% cotton, 50% polyester. Material is processed to protect against any shrinkage after washing. More durable than cotton. Pillowcases have sturdy invisible zipper. 3. Pattern:Print Both Two side 4. Hand touch:super smooth and durable, fabric is exceptionally soft. 5. Advantage:Makes a great gift for anyone who enjoys deep, restorative sleep. A Perfect item to decorate your room, bed, sofa, cars and chairs, ect. 6. Notice:Insert are not included. 7. WASH:Hand wash or dry cleanable.