The ONMO HMD is the first product of the brand - two years of development that you can feel performance-wise and qualitatively. The HMD is made of aluminum and offers optimal properties and excellent performance. Here is an overview of all the advantages & features: The ONMO HMD is made entirely of aluminum Fits two pieces of charcoal up to a size of 27mm The upper edge provides security when placing additional charcoal on the edge The haptics and optics give a high-quality feeling The bar at the bottom gives you the possibility for any setup: distance, full contact or "bar contact" setups are possible with this The diamond profile inside the HMD provides enough space for optimal air circulation even below the charcoal, so that the going out of the charcoal can be largely avoided. Dimensions: Diameter at the bottom: 7.5cm Diameter of the upper edge: 6.6cm Height with bar: 3cm Opening: 5.5cm Weight: 69g Note: Do not preheat the bowl on a charcoal lighter, etc. Discoloration may occur due to improper use. Allow the bowl to cool before rinsing it in, for example, water