I use this mouse pad model for very long. My first passed away there a few months wear on the gel pack, after more than 8 years of intensive use ... I bought the same without hesitation. I had red, went to blue! He brings unparalleled comfort, and I can not do without me from the beginning. The outline clear silicone tends to yellow with time passing. But considering the life of the carpet, you can not throw stones either. Try it, it really adopt it, you never want to happen next.