Where is the best place to get resistance bands/therabands/pilates bands in the UK at a good price?

I have seen a few in the sports shops but don't know whether they are any good and also looked at the Davina ones in Argos but yikes they are all so different I don't know where to start.

I will be using them mostly for leg exercises and to help sort my shin splints.

Any recommendations would be gratefully received.

Thanks
Claire

Bunheads heavy resistance bands are the best! They should be really easy to find online but i have yet to look for you. I have one and it is very strong and durable

I bought mine from my gym. They teach Pilates there and sell them for you to practice at home. I'm in Australia though.