This mesh postural training cushion set will correct your seated posture. Sitting up straight with lumbar support relieves back pain. Better seated posture can lead to less neck and eye strain. Gamers, remote workers, and office staff can benefit from sitting correctly with the help of lumbar supports. Does sitting all day cause discomfort? This cushion can act as positional support if you have sciatic nerve pain, strain, or muscle loss in your lower back. Office or home office workers can endure long periods of sitting with the support of these mesh backrest cushions. The elastic band slips over the back of most chairs, holding the cushions securely. The set of four backrests provides a versatile solution for back support wherever you need it. For example, use one cushion on your office chair, dining chairs and another cushion within your car. Breathable mesh allows air to cool your lower back. The backrests are lightweight, consisting of soft mesh over a strong, sturdy frame that holds its shape. The cushion can add comfort to long car trips. You can use the set of four lower back cushions on a car ride for every passenger to make road trips pleasant. These light mesh cushions are a great gift for frequent travelers, truck drivers, or delivery drivers. The durable backrests are a supportive solution to back aches and pains. Details: Black 16.5" x 14" x 5" Set of 4 Fits best with standard desk chairs Elastic band secures the back cushion to your seat Memory foam Mesh material