Mechanism for sofa bed with wood

Folding sofa-bed mechanism with wood slats, in various dimensions for sofa beds. The mechanisms are folding and are fastened to the inside sides of the sofa base seat with screws. The mechanism has its own legs, so the weight does not fall on the sides of the sofa. Mattress length: 185 cm. Mattress width: 135 cm. Height when closed: 29 cm. Width: 60 cm.   Available in dimensions 82, 92, 112, 122, 132 cm and for double bed 152, 162 cm.