This is a Fukuro obi
with gorgeous bird and flower lattice pattern.
It has been woven with shiny gold foil threads.
Textile is silk and has soft touch, and lining is not added inside.
Both ends are sewn roughly maybe by individually.
Also they are opened partly.
It has some molds at no pattern parts.(indicated as stain in the figure)
Also it has some folding lines, so please check figures and photos for more details.
However, it still can be tied.
Please enjoy its gorgeous design with your kimonos!