The Grateful Dead Herb GrinderThe Grateful Grinder. Designed by Zoltron. The best Grinder in the known universe. Limited Edition of 600 Extreme Quality, 4 piece aluminum Grinder 2. 5" Tall X 2. 5" Wide Sculpted Aluminum cast. Laser etched bottom About the Anodized Finish: You can expect some subtle variation in the anodized finish. Anodizing is a food safe surface conversion finish, where the color becomes part of the aluminum rather than sitting on top like paint. Subtle