Improve and transform old, sagging car seats by filling in the hollow at the base of the seat with this car seat leveller. Helps to lift the pelvis and place the spine in a more natural 'S' position by encouraging the driver to sit upright. Makes for a healthier and more comfortable driving position and may help to reduce fatigue and stress. 360mm (14") wide and 310mm (12") deep by 80mm (3") high. Weight 450g.