Pillowflex 6 Inch By 18 Inch Bolster Insert Pillow Forms Polypropolene Made in USA Use the sizing charts shown in the images to the left to select the best size bolster insert for your sham, This insert has a diameter of 6" Inches (6" Inches wide / tall) by 18" Inches Long Great loft, give your home's shams a touch of class that will last for years with this Made in the USA bolster This bolster is full yet soft like a bed pillow and is best used a decorative sham insert 100% Polyester fiber filling / Shell is made of a polyester and can be used indoors or outdoors Slick polyester fiber helps resist lumping / Great Loft / Polyester cover is hand wash only / Odorless / Hypoallergenic / Lent and Dust Free