Yes they do.You generally can move them up or down in two positions and the pegs and levers are all on eccentrics,this means you can move them in,out,up or down.And do the OKEY KOKEY AND TURN AROUND!Sorry!
I got them from a lad in Salisbury, he had them advetised as rearset adapters, so I was expecting them to move my pegs rearwards and upwards, but they moved them rear and downwards so I sold them on. I will try and find a pic of them and either email it to you or post it on here.