This item package includes 3 piece of wheel pen, which are practical tools to help you art painting more happily. This 5D diamond pen is mainly made of alloy and acrylic, which can be applied repeatedly, not easy to deform or damage, long term to apply in daily life. Features -Color:Assorted Color -Material: Alloy, Acrylic. -Size: About 13.50X1.00X1.00cm/5.31X0.39X0.39in. - Battery: 2 x AAA (Not included). - This drill painting pen has bright light and design, roller wheel tip, convenient to use. - The bright light not only makes you more clearly put the diamond in the right position, but also can effectively reduce eye fatigue. - This drill painting pen is suitable for different kinds of diamonds, such as round diamond and square diamond. - It can also be applied for manicure, handicrafts, making adhesive tools for mobile phone decoration, and more. - The drill pen is durable and reusable, not easy to break. Package list: 3 x pens 3 x rollers