- Size: This chair cushion set measures approximately 40 x 40 x 5cm (15.8 x 15.8 x 2 inches). Stable for normal chairs, such as dining chair or office chair. * Material: Padding and filling 100% polyester. The fiber gives the cushion a spongy padding, which retains its shape and has a high resistance to deformation. * Safety: Our seat cushions have fabric fasteners so that they can be well attached to your chairs and not easy to slip while using. * Easy to clean: Machine washable at 30 ? C no ironing required. Hand wash and tumble dry low. Bleach doesn’t hurt. * Occasion: they are very comfortable and integrate perfectly with the furniture. If necessary, it is not hair loss and more durable for kitchen, dining room, living room, patio, garden, office, cafeteria, etc.