Great rollers, but poor service [SEP] On terms of performance, these rollers are really great. The cold surface works on anything, from pain relief for headaches, to joint pain, to reducing undereye puffiness. The rollers move smoothly and quietly, and the cold sensation ou n lasts for roughly ten minutes before needing to be placed back in the freezer. The handle is easy to grip and the performance is great. The package deal, however, is anything but honest. I ordered a four pack, as a suffer from chronic migraines and eye aches. I only received two rollers. Considering I use these daily, it would have been nice to have a steady supply of these pain relievers on hand.