Unishow Authentic BOLT 2.5" 4 parts Lightning tobacco spice Herb aircraft Aluminum Grinder 50 Blades W/Pouch (Silver+blue lightning) high quality made Designed with 50 sharp teeth and a clear top view, the 4 piece Bolt herb grinder offers a lightweight 4 stage construction thats built to produce fine grinds for pipes or vapes. Simply stuff Bolt with your favorite herbs and give it few back and forth twist. The magnetic lid doubles a storage container. there is a "O" protection rubble ring between the 1 st and 2nd parts when you grind. Unishow is a registered trademark!