Material: Polyester + Spandex Suitable Office Chairs: Back Height: 14.2-18 inch/35-45cm Back Width: 14.2-18 inch/35-45cm Seat Length: 14.9-20.5 inch/38-52cm Seat Width: 14.9-20.5 inch/38-52cm Note: Please measure your chair before purchasing to make sure it can be installed. Please allow 0.5-1 inch error due to manual measurement. Feature 1. Stretchable material, high elasticity to fit chairs well. 2. Soft material, good touch and comfortable to sit, no ironing required. 3. Independent 2-piece cover design, easy to install. 4. Removable, machine washable. Wash separately in cold water, easy to cleaning and wash. Function 1. To protect your office chairs from damage, anti-dust and keep clean. 2. Redecorate your chairs, change the look of your desk set. 3. Give your damaged or old chair a new look. Package included 1 x Chair Cushion Seat Cover 1 x Chair Backrest Cover