1. Product Specifications: Set Includes: 6 pencil extension holders (6 colors). Size: Length 3.9 inches (10 cm), inner diameter of pencil attachment is about 0.8 cm. Exquisite appearance, flexible use, comfortable writing 2. Material: Aluminum pencil holder. Super lightweight, easy to carry, rust resistant and durable. Reusable The pen shaft has an anti-slip finish, so it is easy to grip the pen body, and it wont get tired even after long periods of use. 3. 【Product Benefits】When the pencil is short and hard to draw, you can attach the pencil extender to the pencil extender, you can extend the length of the pencil, make it easier to draw and write and use the pencil more efficiently, and save money. 4. 【Easy to Use】Take off the grip (non-slip) part of the pencil tip and insert too short pencils into this pencil extender sleeve and finally hold the ring securely into the pencil. 5. 【Scope of application】 Put the pen into the extension clasp, suitable for triangle pencil, hexagon pencil, round pencil, work pencil, colored pencil, sketch pencil, etc. Lightweight and easy to hold, great tool for school and outdoor sketching, charcoal painting, calligraphy and more.