Product Description Take the performance of your models to the next level with QUARKZMAN's professional carbon fiber tubes. If you're building racing drones, RC planes, or advanced mock-ups, you know that every gram counts, and the rigidity of the design is the key to precise control. Our pultrusion tubes offer an unbeatable strength-to-weight ratio – they are as much as five times lighter than their metal counterparts, while maintaining extreme rigidity.