-after 2-3 weeks before visible signs of use (scratches / worn at the point where the mouse is always) but these do not interfere with the function bissher mouse.
- To the pad should once on the bottom (previously good clean) fix and then no longer be solved.
If one does it, the bottom of polluted and then has almost garkeine more grip! (Has happened at a buddy)
Conclusion:
For the price okay, but are better. But also a Razer Destructor Mouse Pad (4 years old / time ~ 30) and the surface still looks like on day 1! Better than the Siru after 2-3 weeks. The downside of the Destructor is that there is 2-3 mm thick and also because the edges are slightly frayed. But as I said, after 4 years! The bottom of the Destructor is better.
Hope i could help =)