Your House Gadgets Nice Stainless Steel Coffee Grinder - Portable Coffee Mill Grinder With Window, Compact, Traveling Friendly with Free Cleaning Brush Ceramic Conical Burr - Durable and availiable for water cleaning Beans feeding design ensure beans drop into burrs continuously.. Grinding fineness Adjustable, With window to see how it grinds Portable Compact design, good for outdoor use Material : S.S.(Metal Parts), Ceramics (Burrs), AS (Knob), Plastic (Inside)