The copper turning pen kit has a tube size of 27/64inch; The recommended blank size is 3/4 x 3/4 x 5Inch, which is suitable and easy to store. Our set contains 20 pieces wood turning kit, 5 different colors: black, gold, silver, rose gold and matte black, 4 pcs each color, each piece contains black pen refills, rich and enough for your use and share to meet your diverse needs for making crafts. The woodturning pen kit is made of iron and brass, which is stable and firm, not easy to fade, break or rust; The smooth is not easy to scratch your hands, and it is ergonomically designed according to weight, which is very comfortable to use. The woodturning pen kits are designed to cater to novices and experienced woodworkers, providing you with possibilities for DIY; It is very suitable for beginners and provides an excellent opportunity to learn basic skills that can be applied to turning projects. This wooden turning pen kit does not include pen making lathes, shafts, drill bits, or wood blank. Practical gift: Our pen kits for wood turning making are ideal to send to your family members, friends, colleagues and more. They feel your concern and love, and your relationship be improved. DIY: You can apply the pen kit in wood turning, making diverse crafts as your mind, expending your fantastic ideas, giving play to your creativity. Notes: Small parts included, please keep away from children. This set does not include the lathe for pen making, the , the drill bit, the wood blank, you need to prepare it yourself. Pointed parts included, please keep away from children. Color:As Shown Material:copper Package Contents: 1set x pen kits(5 colors, 4 pieces each) 5 x wood(5 colors/1 piece each) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.