1) Carbon Fiber Tube - 8mm x 6mm x 500mm - CarbonKevlarSupply.com
CARBON FIBRE TUBE 8mm, 12.5mm, 18mm, 25mm, 30mm, 40mm, 50mm OD up to 1.8m long | Bison Carbon | Fishing Mad
Rolling Process Carbon Fiber Tube 8000mm Custome Made Large Diameter Carbon Fiber Tube for Industry High Quality - China Carbon Fiber, Tube | Made-in-China.com
10-32 RH x 3/8 in. .037 in. Tube Adapter, Aluminum, Carbon Fiber Tube | Quarter-Max