I paid under a pound (for two) but for the prices listed for this item it is an excellent product.
This product is really good quality and the protector is very rigid not flexing much. I find that after fitted the screen seem more responsive and my finger seems to flow over the surface easier.
Firstly as with all screen protectors cleanliness is the most important first process. I repeatedly cleaned the screen with windolene and other glass cleaners until I was confident I could not get the screen any cleaner. I then blew off all dust as this will cause the protector to bubble as the film rides over any contaminant.
Then carefully peel off tab 1 which removes the film from one side of the protector this is then laid flat onto the ipod touch and left to settle - DO NOT make contact with this sticky side as it will collect finger grease prints and dust!!
I then rubbed the protector with my finger/credit card. Once happy I removed the final 2 tab which removed the scratch protector from the protector.
I can not see the protector now it is applied and am very happy.
Fitted in 5 minutes after extreme cleaning, easy to fit and makes experience after fitting better as screen feels more fluid and slippery.