These OCB x Wakit Electric Grinders are great for breaking up herbs regardless of texture and stickiness. Using a ball and chain mechanism, the device swirls the material in a gentle vortex that avoids sullying the flavor and texture. These grinders have a powerful 400mAh battery with micro-USB recharging capability. Cleaning the Wakit Grinder is as simple as wiping it out with a moist towelette.