We have barn door hardware antique items. There are 2 as pictured. They are the top pulley driven on track hardware pieces - i do not have the track. They are the same and measure about 11 3/8" in h x about 6 1/4" in w x about 1 1/2 in d at the deepest point on the u shape which surrounds the wheel. The wheels inside the track are about 3 1/2" across the center x about 1/2" in d.They are a mixture of surface rust and black painted steel. The wheels move freely and function fine.
This item is made of metal.