This Mandala Tool is Great for clay, art projects, sculpture and other craft projects Approx Diameter of acrylic dotting rods: 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm and 15 mm, Length of acrylic dotting rods: 15 cm/ 5.9 inches Approx diameter of ball stylus pens: 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.2 mm. Length of ball stylus pens: 13.4 cm/ 5.3 inches. One end with larger ball and another end with a smaller one Can be used on natural nails, false nails, acrylic nail. Suitable for professional use and hom