Here is the one I use. What I like about it is it came with 3 screws for different stand locations so all you have to do is slide it on and tighten the wing nut.

http://www.gandermountain.com/modperl/product/details.cgi?i=401040&pdesc=HME_Products_Better _Bow_Hanger&cname=Treestand-Accessories&aID=503H5&merchID=4006&r=v iew