Ah, yes, my beloved chinese therapy cups. Here's the link for the ones that I bought http://www.amazon.co.uk/Silicone-Massage-Large-Cellulite-Instructions/dp/B00K23L1Y4/ref=pd_cp_d_3
The set comes with two therapy cups, but unless you're ambidextrous or an octopus, you really only need one :). I...