With this kit, you can hang 3 large rolls of background paper and easily roll them up and down when needed. The white parts, slide into the cardboard tube of the background paper and when you twist the knob, the white parts expand gripping the inside of the tube. Then you just roll and unroll with the weighted plastic chains. It worked really well. I'm just not doing photography anymore. You can find similar products on B&H or Neewer for $100-$120, see below. I'm selling the whole kit for $50. You'll obviously need your own paper rolls.
Call or Text Sam and (503) Five One Six 7474 if you are interested. Thanks.