Rubber approaching contact things used on phone books for putting give stuff to be removed and used again? This rubber like stuff is also used when one gets a credit...

This rubber like stuff is also used when one gets a credit card surrounded by the mail its stuck to the quality newspaper but lifts slickly without taring the treatise. I want to find out how I can get this product.
Does anyone know where on earth I can...
Answers:    I THINK I take back it being a form of "hot glue" ... don't remember why that registers and I own looked (glanced really, not urgently) but not found it... but I still remember reading that it is a form of hot glue!
That's my story and I'm sticking to it...