Has anyone tried these things out, man i love them a teammate bought some and gave a few, green, blue, white, and yellow. there is a order to use them in but they shure do work personally speaking.
Use 'em all the time.
Good stuff.
Just rinse them off with a little dishwashing soap and they're ready to go again.
They're not forever, however- eventually, they'll get krinkled up, but its no biggie.