Car seat or office chair back support pillow mesh beads massages your back. mesh back lumbar support cushion pad relieve your driving and working pressure. many bead can massage you back muscle for relaxing. attached by elastic bands with enable pefect adjustments. using high elastic steel wire frame, elasticity, keep in shape great for car seats, office chairs, or home and truck chairs for your driver to remove fatigue, its mesh design, leak, cool mesh material improves excellent air circulation to keep you cool. made of unique mesh fabric that allows airflow for personal comfort. gently conforms to body contours for a uniform support for your lumbar vertebra,fit well match soft car seat chair cushion pad massage vent mesh lumbar lower back brace support seat