Two-fold, sofa bed mechanism with rapid opening system, which operates through traction from the backrest. The Santiago model makes it possible to quickly turn a sofa into a comfortable bed. High-resistance 30 mm diameter tube structure. Extra thick belt leverage. The Santiago model features bayonet coupling for rapid backrest and arm fastening. This mechanism operates at a height of 8 cm from the ground. Two versions of back rests are available, namely Semplice (simple version) and Portacuscini (cushion holder version). Fired epoxy powder painting system. This mechanism can be matched with a spring, futon or polyurethane mattress. Maximum 198 cm in length and 13/14 cm in height.