Cali Crusher presents the revolutionary American made Homegrown® Grinder. This designer herb grinder is packed with new and unseen features. Our patented 4-Way Quick Lock System replaces traditional threads, and eliminates the possibility of cross threading and jammed grinders. Our 210 count micron screen can be easily removed and upgraded using a 3/32 inch hex wrench. Our grinders are manufactured with high-quality 6061 aerospace aluminum and come with type II anodized protection. Cali Crusher Homegrowns utilize powerful neodymium earth magnets to ensure a strong hold. They are bead blasted, producing a scratch resistant finish. An ultrasonic cleanse leaves them free of metal shavings and CNC fluid application makes this product medical grade. Homegrown's larger drop holes allow for a free flow grind with no obstruction and the removable O-ring provides a smooth twisting action. Our rounded bottom chamber is the first of its kind and makes pollen collection simple and easy. The teeth come with a lifetime guarantee. Proudly manufactured in San Diego, California.