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-color Square Solid Pad for Chair,Cooling Chair Cushion with Tie,Seat Cushion,Soft Chair Pads,Chair Cushions,Pillow for Chair,Office ITEMS: Chair Pad; Colors: You have 8 colors to choose; SIZE: 1616’’(4040cm) 1818’’(4545cm) 2020’’(5050cm) 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-Color Square Solid Pad For Chair, Cooling Chair Cushion With Tie, Seat Cushion, Soft Pads, Chair Cushions, Pillow Chair, Office