This Sharpstone 4 piece Vibrating Grinder is a special grinder. It has a vibrating lower chamber that’s powered by a CR2450 battery.
The vibrating chamber sifts all pollen through the screen effortlessly. This Sharpstone grinder comes in silver and is made from food-grade quality aluminum.
It measures 2.2-inches in diameter and the 4 piece construction includes both a herbal storage compartment and screen chamber. The battery is also included so you can start grinding and sifting pollen immediately.