I just bought Genuine Leather Chamois.

I know general idea of using it, but what is it for?

when can I use it?

 

your kidding right? first of all dont use it all or you'll get swirl marks. second of all you bought something but dont know what it's for or when to use it? Uhhhh i have some prime reality for sale you want to buy it?lol, j/k. seriously though, maybe you should do some research before you spend your hard earned money.