TreeWool, Hauroki Poly Silk Decorative Accent Throw Pillow Cushion Covers (18 x 18 Inches, Olive Green) 50% Silk / 50% Polyester Hand crafted square cushion cover in Poly Silk (insert not included) Size : Approx 18" x 18" (45 x 45 cms). Design pattern on one side and solid/plain on the other. Invisible zipper closure for elegance. All fabric edges overlocked to prevent fraying Fully Machine Washable The product being hand crafted, may have slight variations in the dimensions. However adequate care has been taken to ensure that the visual appearance of each piece is the same.