Must be a Youngster!!!!! Those are devices that attach to the outside clothes line and hold the tension to keep the line from sagging..... not much need for them now days that we have automatic dryers...... I tried to buy a clothes line last spring and all I could find was the cheap undersized line (rope) in the big box store. The local hardware store didn't have much of a selection either.... Just made the old one a little bit shorter.... Wife prefers to hang clothes and sheets than put them in the dryer..... Doesn't matter to me, as long as I don't have to do it...... If I did, the dryer would be my choice...