IF YOU HAVE ANY QUESTION, PLEASE FELL FREE TO CONNECT ME FOR HANDMADE PRODUCTS,IT IS NORMAL FOR THE SIZE ERROR TO BE WITHIN 2’’(5cm)! Multiple-colors Corduroy Pad for Chair, Chair Pad with Ties,Square Seat Cushion,Checkered Chair Pads,Chair Cushions,Pillow for Chair,Office MATERIAL: Corduroy; ITEMS: Chair Pad; Colors: You have 9 colors to choose; SIZE: Diameter:16’’(42cm); SHIPPING TIME: We need 1-2 weeks to made your order, & then it will cost about 1 week on the way. NOTE: Machine washable. IF YOU HAVE ANY QUESTION, PLEASE FELL FREE TO CONNECT ME I can accept cancel the order,but you need to connect me within 24 hours after you purchase the order; But,i can’t accept return or exchange after you receive the parcel:) Multiple-Colors Corduroy Pad For Chair, Chair With Ties, Square Seat Cushion, Checkered Pads, Chair Cushions, Pillow Chair, Office