@chgowiz i don't really know how to describe it. It's a palette that has a variety of textures on it for use when drybrushing, instead of using paper towel or something. I'll include a photo.. maybe that'll help more than my description. But there are YouTube videos about it apparently 🤷♂️
Well, then to answer your question, I kinda use whatever is handy. Paper towel, my hand, the dog... (not really on that last one, but I bet she'd try to lick the brush...)
So if this palette makes people happy, then go for it!