Waterproof Material: Made of 86% polyester, 8% spandex and 6% TPU, 100% waterproof, soft, wrinkle-resistant, high elasticity; machine washable, no ironing required Suitable Cushion Size: Chair cushion length: 14-19"（35-48cm）, width: 14-19"（35-48cm）, thickness: 1.2-3" （3-8cm）Please check the size before purchase Protect Your Dining Chair: Highly elastic dining chair cushion protectors can easily upgrade your old cushions and protect your dining chairs from daily wear and tear such as stains, dust, pet hair and spills Secure Dual Fastening: Reverse side features reinforced elastic edging with two adjustable straps; cross-lock design stays firmly in place during dynamic seating movements Wide Use: Suitable for daily chair protection in kitchen, bedroom, living room, office, or chair decoration in hotels, banquets and celebrations