Graber Traverse Rod Slides (10)

What the heck is this thing for?

It’s for a special kind of drapery rod. You hang the curtain on them and usually pull a rod to slide them open and closed. Think hotel curtains.

http://ep.yimg.com/ay/yhst-1687196642680/usc-select-premium-shd-double-bronze-traverse-rod-42.gif