Sharpstone 55mm 4 part grinder.
The SharpStone 55mm grinder has a silicone ring for smooth action and four parts for excellent material capture.
SharpStone grinders are the ideal addition to your on-the-go smoking arsenal. With a 40mm diameter, they'll fit into almost any pocket, purse, or bag, and because they're SharpStone, you'll know they'll give you a perfect grind every time. It has a 55mm diameter, a silicone O-ring for smooth grinding, a durable alloy construction, sharp diamond teeth, and a 55mm diameter.
1 55mm 'SharpStone' Grinder with Scraper