Features: The glass grinder comes with a flat bottom to elevate its performance. This makes it compatible with tempered glass grinding boards or color palettes, simplifying paint collection and direct usage. Artist friends can appreciate the essence and capability of the paint muller. Gift it to your artist friends, considering its vital role in achieving paints, thus enhancing the overall painting experience. Specifications: Material: glass Color: clear Size: about 2.56 x 1.57 x 1.57 inch/ 6.5 x 4 x 4 cm Package includes: 1 x Glass muller Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays Artistry Tool: experience the transformative process of creating your paints from scratch with an about 2.56 x 1.57 x 1.57 inch/ 6.5 x 4 x 4 cm glass muller with flat bottom, to meet the needs of artists and painting enthusiasts who enjoy customizing their paints, designed for a plethora of paint forms like watercolor paints, oil paints, and tempera paintings Ergonomically Designed and Quality Material: the glass muller is made of quality strong tempered glass and the paint muller's grip is intuitively designed to offer comfort, thus making the grinding process easier, the smooth grinding surface pairs well with tempered, frosted glass grinding boards or palettes, contributing to efficient cleanup and paint collection post work Versatility in Application: exhibit versatility in your artwork, as the glass pestle proves to be a handy tool for a wide array of painting forms, from watercolor, oil painting, Chinese painting, to tempera painting and thangka Simplified Process: to make the grinding process straightforward and efficient, just place the suitable amount of pigment on the grinding dish, fashion a small hole in the middle of the paint pile with a palette knife, add a digestible amount of cold pressed flaxseed oil or other medium, blend with a palette knife; After initial mixing with a palette knife, use the paint muller to grind in a circle or 8 shape until you reach the personalized pigment you need Achieve Paint Consistency: utilize the glass muller in effectuating a full mix between the pigment and the medium, ensuring the medium does not segregate post intensive grinding, make sure you avoid using coarse particles as it can jeopardize the desired outcome ASIN B0GD69BTLK Item Weight 1.76 ounces Manufacturer Nuanchu Item model number Nuanchu Product Dimensions 3.35 x 1.77 x 1.77 inches