Bought this for my Yamaha YZF R125. It's fantastic. Once you've tightened all the bolts as hard as you can (important!!) you simply put this under the back wheel, pull down on the bar, and (as long as someone is holding the bike up straight for you while you do this), the paddock stand will lift the bike into it's correct position.
I can finally clean & lube my chain without wheeling the bike up and down the road! Nice one!