TWANG...there are different models available.The one I use the most is the Chief model...9 1/2 lbs. w/220 lb. wgt. limit
A couple of years ago I spoke with Stan Potts after a whitetail seminar he had given and asked him what kind of set up he used and might recommend. He said he used Lone Wolf climbing sticks and Chippewa treestands...I've used nothing else since...great combination.I can put up 4 sticks and my stand in 10 minutes...
The website should help you out:
http://www.chippewawedgeloc.com/
Oh yeh...it has backstraps that hang from the platform that work very well. A welded link chain attaches around the tree with a "S" hook and then V brackets on the back of the stand slip over the chain...pics on the website will explain better than I can and there is a phone no. on there to call if you have questions.The stands run just under $200...I don't think they list any prices on their site.
Hope this helps...they are definitely work a look.
TB