The eye bag is really easy to use just put in the microwave for 30 seconds and then put on your eyes for 5mins, twice a day. Check the heat before you put it straight on your eyes.
After using this for a week I have found that my eyes do not feel as tried at the end of the day as they used to. This is good for me as I use computers all day for work.
The only bad thing about this product is that you have to balance it on your eyes, it would have been better to have a strap on it, to put around your head.