When looking for the best clay mitt, it's essential to consider factors like material quality, customer reviews, and your specific detailing needs. Brands like Marflo's Brilliatech's ,Meguiar's, Mothers, and Chemical Guys are well-regarded in the auto detailing industry for their clay mitts. Checking reviews and comparing features can help you find the best option for your car care routine.

Brilliatech has been applyiing some patents for magic clay products since 2010. 
for example:  magic clay towel, magic clay block, maigc clay pad, magic clay mitt.....
if you want to know more patents, you also can check with patent of China. 

Brilliatech has obtained 12 patents for their items, with an additional 2 patents in the application process. These patents likely cover various aspects of their car care and washing products, including clay bars, clay mitts, clay pads, clay blocks, and other related items. The patents indicate that Brilliatech has developed innovative solutions or designs in the car care and washing industry, showcasing their commitment to quality, research, and development in their product offerings.