Instruction: Answer the given question using the supporting document.

Input:
Question: is the crank for folding arms in or for elevating the whole line
Document: Sturdy, easy to use, well made and it spins in the wind. I especially like the crank which raises the height up and down.
The Hills Rotary line works better than expected and will hold all of our weekly laundry king size sheet included.
My husband installed this with little difficulty. It's really sturdy, easy to use and can fit alot of clothes. Shipping was also really fast. I'm very happy with my new clothes line!
The sleeve stays in the concrete, so the clothes line it's self can be removed in case of a change of address (another sleeve can be bought from Hills), or a really bad storm.I am so glad we finally got it.Hope that this helped you.
The box arrived with inadequate packaging such that the parts were loose in the box. As a result the handle had sheared off. Getting replacement was difficult because there was no invoice with the product. I have ordered a replacement handle from the manufacturer paying for it myself.In addition I cannot find the record of the purchase from Amazon on line.Needless to say I am not happy.
We have been so pleased with this product! We had the sleeve laid in our patio and it is very sturdy. I love that the clothesline rotates which is so perfect for drying our cloth diapers as there are sometimes poo stains on both sides of the diaper and with the sun hitting all sides through the day they come out perfectly white!
This is a great clothesline, sturdy and gently spins in the breeze to facilitate drying. Hold about 4 large washer loads. Very easy to set up. This is a truely green addition to our yard,
Researched many brands and decided to go with the Hills. Very satisfied with quality and features. Only used a few times but should give many years of trouble free service.
I've had this clothesline for over a year and love it. Easy to adjust height and rotates so you don't have to move around to hang the clothes. It folds up nicely for the winter and can be removed and stored. It was easy to install with a little concrete. Overall a great product.
I have owned this product for over a year. It is great for airing out pillows, (small) rugs, Quilts, and of course saving electricity by hanging out laundry when the weather is nice! !Hill's Rotary 7 clothesline is sturdy, easy to put up and down, and it was pretty easy to install; just needed a shovel, and a bag of ready mix concrete, and my husband's muscle power.
Answer: The unit will open like a regular rain umbrella.  The crank is for raising and lowering the head of the hoist.  The Rotary 7 has an opened starting height of 5'6" and will hoist an additional 18" into the air and spin in the breeze.  The spinning motion will allow items to dry that much quicker.  In addition, the hoisting function will allow you to hang items full on the line.  You can see it in action on You Tube.   https://www.youtube.com/watch?v=dQudrrcYIhA