The no slip pad on the top piece on my [words=http://www.mattersofsize.com/forum/showthread.php?83577-Length-master-official-order-thread-now-shipping-06-16-2014!!!]LM[/words] has come off. What is the best glue to use to glue it back on so as not to damage the pad or the [words=http://www.mattersofsize.com/forum/showthread.php?83577-Length-master-official-order-thread-now-shipping-06-16-2014!!!]LM[/words]?