Amazon.com: Carbon Fiber Tube 5mm OD x 3mm ID x 200mm Matt Tubes Rod (4 PCS) for RC Aircraft/kites/Quadcopter/Multicopter : Industrial & Scientific
MECCANIXITY Battery Wrap PVC Heat Shrink Tubing 100mm Flat 1m Blue Good Insulation for Battery Pack: Amazon.com: Industrial & Scientific
Amazon.com: Vent Systems 4'' Inch Duct Connector 3 Way Hose Adapter ABS Plastic/Splitter for Hose T-Shape Round Pipe Connector- Extractor Fan - Duct Hose Dryer Vent T Connector - 4 Inch 3
Amazon.com: 12 Pack White Cardboard Tubes for Crafts, Empty Paper Towels Rolls for DIY Art Projects (1.7 x 10 Inches)
Carbon Fiber Tube 3mm OD x 1.5mm ID x 200mm Pultrusion Carbon Fiber Pipes for Quadcopter Multicoptor Frame Body Landing Gear 3D Printer 4PCS: Amazon.com: Industrial & Scientific
uxcell Foam Tubing for Handle Grip Support, Pipe Insulation, 28mm ID 38mm OD 1m Length Black - Amazon.com
1pcs 25mm Outer Diameter PVC Tube Black Pipe Hard Duct Hollow Vessel Through Pass Column 100/150/200/300/400/500mm Long - (Specification: 25mmx2mm, Length: 300mm) - Amazon.com