Different types of bi-fold door in Singapore - Enhanced bi-fold door

• Enhanced Bi-fold Door is the best choice for home-owners who desire adurable and neat door solution for either their toilets or kitchen entrance in HDB, private condo and landed property in Singapore
• Enhanced Bi-fold Door runs on top roller and bottom guide system
• Enhanced Bi-fold Door roller mechanism is the 2nd generation of bi-fold door that is more durable and provides a smoother opening 

Source: http://www.hohodoorsingapore.com/