The truck camper bed liner protects the bed of the truck from scratching and wear and tear of hauling things and from damage that might occur when attaching the truck camper.
These liners come in a hard plastic and are durable enough to withstand any type of abuse.
If you live down in Tennessee (TN) and use your truck for camping on the weekends and hauling wood or other abrasive materials during the week, you want to have a good bed liner.
I have seen bed liners on trucks as old as a 1983 or a 1984 that look in better shape than the truck itself.
If you use the truck to haul a pop up trailer camper and the bed of the truck to take along the ATV and other things to keep you busy while visiting the outdoors.
The bed liners do not allow for water or debris to get to the truck finish, keeping it free from the elements.
If you take a trip to South Dakota (SD) and take in some events such as Sturgis, and use your truck bed as a place to sit and enjoy the day, having a bed liner will protect your truck finish from the scratching and spillage that more than likely could occur.
Some people even use the back of the truck to camp out under the stars for more of a back to the wilderness type of experience.
If you need a truck camper bed liner for your truck, you need to find the right size and fit for your year of truck in order to fit the bed. If the liner fits improperly it might not protect the truck finish the way it should.
The whole liner needs to protect from water and salt seeping underneath in order to protect from rusting as well during the winter months.