Suitable Size: Set of 4 pcs pillow covers is 18 x 18 inches. Not including insert.Raw Material: A Grade Velvet, fine texture, soft handle and comfortable. It has elasticity, no pilling and no stimulation to the skin. Soft & Velour Like Feel. Supply for: Use these simple design pillowcases to protect your pillow from getting dirty. Elegant style improves your personal taste. It would be a surprise when you given as a gift to your family or friends. How to wash: Machine wash cold separately, gently cycle only, or washed by hand. Dot not bleach, tumble dry, do not iron and it'll look cleaning and new. Thank you for choosing us, and hope to bring you quality products and services!