Material: These empty tube floating pens are made of high-quality materials and are designed to be durable. The top of the pens features empty tubes. In the middle of the disassembly process, you can fill the tubes with colored glitter, liquid, or small decorative elements such as dried flowers, shells, or seaweed. Package: These empty tube floating pens are convenient for writing and built to last. They can be shared with family and friends and feature a clip for attaching to pockets or bags, enhancing portability and convenience. Instructions: Each empty tube floating DIY pen can only be opened by rotating the bottom section. To replace the refill, unscrew the bottom, remove the old refill, and rotate in a new one. Each pen has two separate compartments: one in the middle and one at the bottom. DIY Fun: These empty tube floating DIY pens encourage creativity and allow you to express your imagination. You can customize the design by placing decorative elements between the tube and the lower pen body. Note that glue is required to secure the components, but it is not included. Considerate Gift: Featuring a comfortable grip and smooth writing performance, these pens are ideal as gifts for various occasions, including holidays, birthdays, anniversaries, weddings, office events, or celebrations for colleagues and friends. Type: Empty Tube Pens Use: Office & School Pen Color: Mixed colors (random, no specific color selection available) Material: Metal Size: 14 x 1.0 cm Package Contents: 22 x Empty Tube Pens Note: The package includes only the items listed above. Other accessories or display props are not included. Due to lighting and display differences, the actual color may vary slightly from the image. Measurement may vary by +/- 1-3 cm.