What an awesome product... wish i had come across it years ago. They have slip on ocvers for the kids school books instead of horrible, time consuming contact book wraps. These covers come in amazing colours and there are even a few printed designs.
The most economical way to purchase is the multi packs - these include a range of exercise book sized covers; a$ sized book covers and scrap book sized covers.
A friend told me about these covers and she was able to re-use her book covers for a few years before they were too trashed and she needed to replace them, so in the end good value for money.

Approximate cost: $20