Standard overnight sleeper mechanism(Tubular constuction).
Low Leg 25xx ,"XX" means the mounting size of mechanism.King 72",Queen is 68",Full 60",Twin 44",Mini twin 40" and single 33".2572 or 2672 means king size low leg or high leg version.
We also offer 25XXL,"L" means seat cushion angle for seat comfort.
The new updating model is N25XX ,"N" means you no longer feel the metal cross bar to reduce the backache when you take cheaper mattress.
We now offer air breath and fire-proof new deck material for better sitting and sleeping.
It costs cheaper compared to everyday use angled Iron system DF00# series .DF00 Series share the same wood frame with this category but more comfortable both sitting and sleeping.