These valve stems did not fit my TPMS sensors. I'm not sure why there can't be a default theme, but that's beside the point. So, to return this product without being charged a return shipping fee, I have to travel 50+ miles to the nearest UPS store. Otherwise I will be charged $5.99 to put my return in a UPS box or $11.99 for pickup. To me this seems to be an enforced business practice to prevent returns, buyers beware.