Square,18x 18(45cm by 45 cm),Pillow cover only(No inner).Invisible zipper, which allows easy insertion and removal of pillow inserts.Package includes: 1 PCS Pillow Case.Material: Quality Cotton,Soft.Medium weight,high quality and durable.Colors are so vibrant,ONE side print. Concealed with high quality zip. All fabric edges are sewn with zigzag overlock stitch to prevent fray and ensure durability.Easy to change: smooth invisible zipper closure for easy insertion and washing. Invisible zipper closure can be opened around 32-35cm for the cushion insertion.Decorate your bed or couch with a cushion in this 18 x 18 inch Penny-Farthing Cushion Case. An eco-friendly way to change your decor every season or day to match the festivity of the occasion.