Cali Crusher® products are renowned for their amazing quality & affordability. Your herbs have never been in such good hands, err teeth, with their Grinders. They use top shelf Aerospace MEDICAL GRADE aluminum with indestructible radial cut blades that are covered under a Lifetime Manufacturer Warranty take care of business. And now, with the introduction of their first one hitter-- they're entering the word of glass with the same high-quality care and attention they've brought to the grinding world.