Mine is a designs by nature and it's not a rubber one. You need to figure out what kind of a look you want. There are many types out there from complete across the back to a partial like mine. So many people wrap their minds around full backgrounds and think it needs to be sealed off side to side and what not. That's fine but open up your mind and come up with something different!! There are a lot of module type ones that are not that expensive and can create a fantastic look.. Just a thought!