The "children's" ones retail at £150.00. Apparently there is no weight limit now and they say the width is suitable for up to size 6 footwear.
Have I read that correctly? If so then I could easily manage with the smaller ones.
It was on EBay that I read the above last night so may be a lot of twaddle.........
Personally I wouldn't use them, I don't think they are as good as the pros.