Our chair pad cushion come with two extra thick ties that can be attached to the chair to ensure that your chair seat pads won't move unexpectedly. Two sets of string ties help keep cushion safely in place, which prevent the cushion fill from shifting.Insert Material:SpongeCover Material:PolyesterSize:40x40cm(16x16inch);45x45cm(18x18inch);50x50cm(20x20inch)Washing Instructions:Machine Washable At 30°cPackage Included:1 X Seat CushionThis High Quality Chair Pads Idea For Everyday Use.The Cushion Suitable For Most Office Chairs,Desk Chairs,Dining Chairs,Car Seat And Airplane.So That You Be Used Indoors As Floor Cushion,Dining Chair Pad,Car Seat Pad Cushion Or Outdoor Garden Seat Cushion.Our Seat Pad Cushion Is Easy Care,Just Need To Machine Washable For Easy Cleaning.♣Note:* Due to manual measurement, a difference of 1-2CM is allowed.* The package only contains this product and does not include any decorative items related to photos.* Lighting and different displays may cause the color of the object in the photo to be different from the color of the real object.We ship within 1-2 days and you will receive your purchase within 15-30 working days. Our professional customer service will serve you 24 hours a day, if you have any questions, please feel free to contact us~