Premium Quality: Crafted from , seamless round brass for long-lasting use Ideal for DIY Projects: 35 count set perfect for pen making, crafting, and customization Versatile Design: 7mm OD x 0.5mm wall thickness fits various pen making styles Unisex Appeal: Suitable for adults of all genders, fits any pen making kit Easy to Use: Smooth, seamless tubes hassle-free pen assembly Upgrade your DIY pen making projects with these high-quality 35Pcs Slimline Pen Tubes. Crafted from , seamless round brass, these pen tubes measure 7mm in outer diameter with a 0.5mm wall thickness and a 52mm length, perfect for creating sleek, professional-looking pens. Ideal for both beginners and experienced pen , these pen tubes are designed to fit most pen making jigs and are suitable for crafting roller ball pens. Each pack contains 35 pieces, ensuring you have enough to create multiple pens or replace worn-out tubes. Bring your pen making ideas to life with these versatile and robust pen tubes. Color: Gold Material: Copper Package Contents: 35*pcs pen turning supplies 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.