L'art, C'est La Vie. Life, More Artistic. Brand: Artcest by WELFELD Contains: Inclusive of 2 pcs of Thick Cushion Cover/Shell Tailored for 18"x18", but No Inserts, Stuffers or Fillers. Pillowcase dimensions measured from seam to seam when laid flat. The hot high quality square pillow inserts can be found from http://a.co/iccQpuA, http://a.co/27KPJYr, or others. Invisible/Hidden Zipper along one of edges. Color Deviation: Velvet has thousands of thick short piles which have different reflectance, refraction or absorbance. Though our professional photographers have tried their utmost to take the pictures to our buyers on an "as-is" basis of the items, sight deviations still result from this. The ambient light, display screens and other inevitable reasons also result in Color Deviation. Insert Suggestions: This item is a Featured 18"x18" Toss Pillow Shell. The choice of inner depends on how much its stuff being filled. Sometimes, for 100% Hypoallergenic Polyester Inserts, after filling, pillow will decrease about 10% - 15% in size. So, for best results, now we recommend our customers to buy the items together with the 20" x 20" inserts to provide a plump and full pillow from corner to corner. What is Polyester Velvet? Polyester is a synthetic fabric that generally resists wrinkles, fading and shrinking when taken care of properly. VELVET, a closely woven fabric (originally of silk, now also of cotton or man-made fibers, often polyester) with a thick short pile on one side.