Five designated positions: The diameter of the pencil is 0.3-0.3 inches (about 0.8-0.8 cm). The ergonomic groove design allows your five fingers to be placed in one second, helping you learn the correct pen holding posture from the zero-based direction,and gradually form the finger position. Without these pen handles, it is suitable for children aged 2-4. School supplies for writing beginners Reduce writing fatigueUsing soft and smooth materials and ergonomic design, this pen handle is used for writing, allowing your child to get rid of his fists, reduce muscle pressure, and ensure that writing is comfortable and easy to read. There willbe no more redness and calluses on the text The correction pen holder is suitable for children to write. Advanced safe material: The pencil finger grip is made of high-quality soft silicone material, which is non-toxic and tasteless. Elastic and durable, children use pencil fingers to shake hands, feel comfortable and give you a natural pen-holdingexperience. Original design: Combining the advantages and disadvantages of various penholders on the market, our designer created this unique Penguin 5-finger pen holder, which is designed according to the way the fingers hold the pen. Ideal gift for children: Children's pencil grips are suitable for toddlers, students, adults or arthritis sufferers. Continuous use can prevent the middle finger from being cocooned and maintain good writing habits for a long time. Penguin penholders are ideal for childrens Christmas gifts. Package includes 4*Pen holder orthosis