DreamHome Square Poly Pillow Insert, 18" L X 18" W, White Go to amazon.com Related posts Check expert advices for stuffer pillow? How to find the best 18x18 pillow for 2022? Feature18"X 18" square pillow insert100% polyesterIt is washable Description18" X 18" square pillow insert. 100% polyester. It is washable. Good qualitative product. Brand: DreamHome.