18" x 18", 22oz. Pillow Insert: 100% Polyester Fill / Down Alternative - 1" Oversized & Firm Filled (Actual Size: 19"x19") Qty. 1 - 18" x 18", 22oz. 100% Polyester Fill Pillow Insert, 2" Oversized & Firm Filled!! Filling: 100% Polyester Fill / Down Alternative, Firm Filled Fabric: 100% Cotton cover Design: Square Pillow Insert Example: 18"x18" Pillow Insert, Fits a 18" Pillow Cover - Actual Pillow Insert Size: 19"x19" (1" Over-Sized, Firm Filled)