Koltose by Mash - Round Basalt Stones are 3.15? inches in diameter which leave you with the ideal surface space for rock painting and kindness stones. These stones are the perfect size and shape for all rock painting projects especially mandala patterned rocks and are perfect for both experienced rock painters as well as beginners. Each rock is cut smoothened and polished until they are 100% round smooth and flat. They are all cleaned so they are ready for painting right out of the bag. All the stones are 100% percent natural basalt rocks un-coated and are exactly 3.15? inches giving you the perfect stones you need to paint whatever your creative mind tells you. From inspiring words and kindness stones to pet rocks and mandala stones from pictures and patterns to freestyling and symbols you will find that this set has the perfect paintable rock for your idea.