HOMEGROWN Grooved edge for easy grip. Ultrasonically cleansed 6061-T6 Aerospace Medical Grade Aluminum Patented radial cut blades for maximum shredding: cuts one way, fluffs the other. New blade layout allows for a larger loading capacity. Neodymium rare earth magnets for superior closure, easily hold the grinder from the lid. Blades/Teeth covered under a lifetime warranty! Dimensions: 2.35ï¿?wide by 1ï¿?tall Made in San Diego, CA, USA ABOUT CALI CRUSHER Cali Crusherï¿?products are renowned for their amazing quality & affordability. Your herbs have never been in such good hands, err teeth? Top shelf Aerospace MEDICAL GRADE aluminum with indestructible radial cut blades that are covered under a Lifetime Manufacturer Warranty take care of business.