2pcs/1Pair Iron Adjustable 3-Position Furniture Sofa Bed Mechanism Hinges Furniture Hardware Fittings Tool w/Screws

- Size: approx. 88.5*260mm/10.24*3.48inch - Functions: Used for the connection of the back of the sofa and the back of the seat, can adjust the height of the back of the sofa, make it change from the sofa to the bed. - Suitable for connecting the armrest and seat, back and seat, pillow and back, armrest and back, bed frame and bed surface, etc. - Through the operation of the gear, change the armrest, side, pillow, seat and bed surface. - Angle adjustment, installation conceal security, gear opening and closing card design, multi angle, multi gear.