Features: 3D jelly pens: the package includes a set of gel pens. Our color pen can draw unique 3D lines. The more times you repeat, the more three-dimensional the pattern. Smooth writing & quick drying: Fast ink output for smooth writing. The ink will naturally dry on the surfaces of non-absorbent materials such as ceramics, plastics and glass for about 10 minutes while about 1 minutes on the card paper. Comfortable writing experience: ergonomic pen holder design, light and comfortable grip, allowing you to create more freely. Pen clip design is easy to carry. Applicable surface: 3D jelly pen is suitable for painting on glass, ceramics, metal, plastic and other surfaces. Please note that the gel ink will be absorbed when written on ordinary paper, without obvious stereoscopic effect. Widely used: these 3D color gel pens can be widely used in various DIY art project, including notes, marks, paintings, greeting cards, etc., to make the drawing more design. Specifications: Material: Plastic Shells Color: As The Picture Shows Style Options: 8 Color/12 Color Size: approx.15.2cm/5.98in (More Size Detail, Please See Photo.) Package Includes: 2 Kinds of Package(Optional) Package 1: 8Pcs 3D Jelly Pen Package 2: 12Pcs 3D Jelly Pen note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!