Grinder: Get a herb grinder. Mesh screen: Grind herbs and spices with this handy grinder! The diamond-cut teeth provide a fine grind, with a super-fine mesh screen which catches pollen for a smooth process. Four-piece: Contains a four-piece build with three chambers. Material: Made of durable aircraft-grade anodized titanium with a sleek finish. Magnetic closure: With a strong magnetic closure to keep contents secure. Product dimensions: 5cm x 5cm x 2.5cm. Herb Grinder | Living Social