... of micro beads are more therapeutic and comfortable than expensive memory foam because they continuously shape themselves each ... Spandex or as your demands.Filling:100% polystyrene beads with the diameter at 0.3-0.5MM or ... , watching TV, fighting, reading, etc., 2. The pillow can massage your cervical vertebra, head and keep them in ... follows: 2011 most fashional car massager (bone shape-beads filled)