Stainless steel credit card sized herb grinder from Smoke Promos. The new way to grind! Custom herb grinder cards are flat, credit card sized grinders that fit in your wallet and make it easy to grind on the go. It is the most practical, convenient and discreet solution for grinding your herbs anywhere! A custom herb grinder card is the perfect high end business card for smoke shops, dispensaries, medical marijuana doctors, and anyone else in the marijuana industry. Make a long lasting impression by using a custom printed grinder card for your next business card. The vertical weed leaf card is the same size as the other grinder cards but with a weed leaf grinding surface for shredding herbs. Custom branded herb grinder cards with your art or logo available at www.SmokePromos.com