Obwalden and how the mouse pad for left-handers a positive effect and the effect is the same, I can not judge.
The mouse pad is washable and easy to clean / maintain.
Aggressive cleaning agents, however, I would rather refrain, as they could possibly attack the mouse pad and the silicon contained.
I'm using are things lukewarm water and dab, a simple cotton cloth.
After a short while the mouse pad is to be reused dried and ready.
What also pleases me is the fact that you can roll up the mouse pad as necessary to it, if necessary, to carry with you.
So also something to stow for traveling to it perhaps in the laptop / tablet pocket
Conclusion:
This Gelmauspad is easy to clean, portable as it can be rolled up, an excellent adhesion on veneered surfaces and the gel pad has works gently on palm.
I can only recommend this product.