Bean bags today use polystyrene grain for filling up. Polystyrene grain originally comes in a sugar kind and also heavy steam is blown into the sugar to expand it. It is likewise called broadened polystyrene or EPS in the industry. The size of the bead that goes into the bean bag does vary from concerning 3 - 9mm. You can now likewise purchase micro-bead which is 1 - 3mm in diameter. After a couple of years of use, the beans within a bean bag will certainly come to be compressed as well as convenience will certainly be minimized. You can typically pick up smaller sized bags of refill to cover them up.