1.Premium material: high quality linen blend fabric, pure natural fiber, sweat absorption and good air permeability, stable color, can be the first choice for a natural and healthy lifestyle. 2. Cut : 45 x 45 cm, set of 4 decorative pillowcases, can be used for 18" x 18" (45 x 45 cm) pillows. Without filling. 3. Invisible Zipper: Super smooth hidden zipper for easy insertion and washing, yet looks stylish. 4. Washing instructions: machine washable, separate from other items, gentle cycle at low temperature. Do not use bleach. 5. Universally Applicable: The pillowcases are free to breathe and come in multiple vibrant colors. They are perfect indoor and outdoor decorations for your home, bedroom, living room, guest room, dorm or kids room, or also match patio, porch, car, chair , sofa, bed. Product material: linen pillowcase. Product size: 45*45cm/17.7"*17.7" (slight errors due to different measurement methods) Product weight: 75g/piece (excluding pillow core). Size: 45*45cm Product color: as shown Number of pieces delivered: 4 pieces (excluding pillow core)