El Paso Designs 18: x 18" Throw Pillow inserts come 2 to a pack. They are ideally suited for use with El Paso Designs Designer throw pillow covers and other throw pillow shams and covers that measure 18" x 18". The thickness is approximately 6 inches with a weight of 1 pound. Hypoallergenic polyester case with soft plyable poly fill creates the perfect balance between a smooth full look while maintaining a soft comfortable and supportive feel for use on beds and furniture. Odorless and fully machine washable.