Just bought them from a hair extension place in Grafton Buildings on South Anne Street- 21.99.
Do NOT buy them from http://www.velcrosleeprollers.com/
I ordered them from that site originally and was told they deliver within 3-5 working days. 6 weeks later I was still waiting, and all my contact with customer service (emails) had been ignored. Eventually complained on Twitter and they rang me. They were sooooo ignorant and patronising on the phone and not willing to admit the fault was with them. He was very rude about his Irish customers, so I had to just get a refund.
Delighted I found them somewhere else!