Polyester OPTIONAL PILLOW INSERT : Since most customers already have a pillow insert in their homes, the product is a personalized pillow cover only. However, an optional insert that fits the cover perfectly is available for adding to your order while customizing the pillowcase. Click the " Customize Now " button and add any picture you want to make it special or customize a funny pillow to joke someone. Surprise your kids with his/her picture, let him feel the magic with reversible mermaid sequin. A unique gift that can fit everyone and since you can add any picture, its a great home decor with your own design. Simply add any photo or use your imagination and upload a funny photo to smile someone, reflect your style and make a remarkable pillow for your couch. Reversible Sequins - The flip technology allows you to create funky designs and many patterns you desire. When you run your fingers across it, reversible sequins will flip and change into different patterns. MAGIC! HIGH-QUALITY MATERIAL - Our sequin pillowcases are made of polyester and high quality, shiny, sparkling sequin. Size: 16"*16" (40CM x 40CM) lingling design has dedicated itself to premium quality home decor cushion covers, bringing a touch of freshness and modernity to your living space. A home decor sequin pillow cover from lingling design will help refresh your place and add a stylish touch to your home