Note: Refill are small parts, please keep them away from children under 3 years old. 【Package Includes】There are 2 pcs pen covers, 20 pcs refills, 2 pcs pen holders, A useful combination for children to practice, enough quantity for long time using. 【Magic Ink For Magic Pen】Magical Reusable Function: The magic ink refill pen will fade after 8 minutes and disappear completely after about 15 minutes when tracing the text and image path and can be reused over again. This is great for repeated practice. The pigment of the ink refill is extracted from plants, so it is safe for children. 20 pcs ink refills for magic copybook,so many quantity can used long time. 【Comfortable to write】These practice pens are light in weight, and proper for students to write, and the considerate design of auto disappearing ink will be favored by children, the disappearing pen with blue ink will be vanishing in 15 minutes 【Simple to use】Allowing your children to write and practice with these pens, and meet the requirements of daily life, reusable and durable, can be applied for multiple times. 【Good for sharing】There are sufficient quantity of pens for your boys and girls to apply, you can also share some with others, and it is good for your kids to share with their classmates or friends, or you can apply them as novel gifts on Children's Day, Christmas and other festivals if you are a teacher.