guys, am not sure kung meron na naginquire about this but has anyone tried using the "car spring cushion" sa springs nyo? nakita ko kasi sa isang ad at pati sa shop na pinapagawan ko. it looks good the way it was advertised and am kind of considering getting those pero siyempre hesitant parin ako if it's really effective or not. i just want some feedbacks sana for those who've tried already before i get one. here's the link in case:

http://www.sulit.com.ph/index.php/vi...spring+cushion

or;

http://www.ayosdito.ph/NCR/1607966-C...cushion&xtcr=3