Cannabis Stainless Steel Card Grinder Keychain

Take any dry herb you wish to grind and rub it against surface like a cheese grater. It is best to start at the top of the grinder card and move your hand down and up again over the surface, repeating the process until the herb is completely ground. After grinding, you can use the card to scoop and place your ground herbs where you need it. Keep it with you while on go! Easily attaches to your keychain.