1. This sun lounger cushion is suitable for sun loungers, outdoor furniture, and camping. 2. The outdoor polyester fabric used can provide a level of comfort comparable to that of a living - room armchair. 3. When in use, the elastic straps can hold the cushion in place. 4. This multi - functional cushion is applicable to various scenarios such as sun loungers, outdoor furniture, camping, and vacation trips. Specification Parameters: 1. Material: Chemical fiber sponge 2. Dimensions: 43 cm x 14 cm (16.9 inches x 5.5 inches) 3. Colors: Beige, Black Package Contents: 1. One pillow * 1/2 “Premium Pillow” - Made of fiber fabric and filled with sponge. The size is 43 cm x 14 cm (16.9 inches x 5.5 inches). 2. “Comfortable and Durable Material” - The hypoallergenic and breathable fine acrylic fabric pillow can help maintain a comfortable and proper posture during long - term relaxation. It is suitable for both outdoor and indoor environments and can be used as neck or lumbar support for office, car, and household chairs. 3. “Combining Support and Comfort” - This ergonomic lumbar support pillow is made of viscoelastic foam, which can provide support for the back and conform to the back curve. The 3D mesh fabric feels cool and is durable. 4. “Easy to Install” - It is designed to fit many lounge chairs, beach pool chairs, recliners, lawn chairs, and zero - gravity chairs, and is equipped with a fast - adjustable Velcro buckle. 5. “Wide Application” - It is suitable for use in the office and at home, as well as for travel by various means of transportation such as car, truck, bus, train, or plane. It comes with an adjustable elastic buckle strap to fix it on the chair.