One piece carbon fiber rectangular tube designed for lightweight, strength frame construction. This 500 mm long tube features a twill matte surface and 3K carbon fiber, offering a clean look and reliable performance for RC and DIY projects. Key benefits strength and lightweight performance for improved power, speed, and efficiency Rigid rectangular/square tube ideal for frames, arms, and structural supports Matte twill surface provides a professional finish and reduced glare Versatile cross section with multiple outer diameter options for flexible design Long length and singlepiece construction simplify assembly and reduce joints Key attributes Material: 3K carbon fiber Surface finish: Twill matte Length: 500 mm Type: Rectangular/square tube Crosssection size: 30 x 30 x 28 mm Outer diameter options (OD): 8 mm, 10 mm, 15 mm, 18 mm, 20 mm, 22 mm, 25 mm, 30 mm Quantity per unit: 1 piece Specifications at a glance 1Pcs strength carbon fiber tube, 500 mm long Crosssection: 30 x 30 x 28 mm Available OD variants: 8, 10, 15, 18, 20, 22, 25, 30 mm Surface: Twill matte finish Material: 3K carbon fiber Suitable for RC planes, drones, and DIY craft projects Applications and use cases RC planes and drones: construct lightweight yet stiff frames, booms, or arms to improve maneuverability and performance DIY robotics and camera rigs: create rigid supports, brackets, or extending arms that require low weight and strength Craft projects and models: build custom chassis or structural components that benefit from a clean aesthetic and durable performance Why this tube stands out Combines 3K carbon fiber with a twill matte finish for a durable, attractive look Provides a strong, lightweight structural member suitable for demanding hobbyist applications Available in multiple outer diameters to fit a range of design requirements, while maintaining a consistent 500 mm length Note: This listing specifies 1 piece per and includes a rectangular/square carbon fiber tube with a crosssection of 30 x 30 x 28 mm and length of 500 mm. The product is suitable for RC airplanes, drones, and various DIY craft projects.