As with most pipes, bubblers and bongs, the Freeze Pipe family of products work best with ground up herb.
This card grinder make it easier than ever before to quickly turn those buds into usable and highly effective ground-up herb. It also doubles as a keychain for maximum portability and discreteness.
Simply slide your herb back and forth across the shredded area and look out below!
Think a cheese grater but for your Freeze Pipe.