Amazon.com: WHABEST Glossy 12mm OD x 8mm ID x 1000mm 3k Carbon Fiber Tube /Carbon Tubing /Shaft, Wing Tube Quadcopter Model DIY : Industrial & Scientific
10PCS Rigid PETG Tube 5PCS 1" (25mm) OD & 5PCS 1/2" (12mm ) OD x 1mm Wall Thickness Plastic Tubing, 16" Length Clear DIY Acrylic Tube Chemical Resistant Round Polycarbonate Tubing
uxcell 10mm x 12mm x 500mm Brass Pipe Tube Round Bar Rod: Amazon.com: Industrial & Scientific
Amazon.com: PrimoChill 12mm ID x 16mm OD Rigid PETG Tube – 6 x 30in. – Clear : Electronics
2pcs OD 12mm ID 10mm Length 250mm 304 Stainless Steel Capillary Tube: Amazon.com: Industrial & Scientific
4 inch Long 5 Piece Pyrex Glass Tubes 12 mm OD 1.5 mm Thick Wall Tubing Borosilicate Blowing Tubes: Amazon.com: Industrial & Scientific
Amazon.com: ATEYC Steel Tube, Hollow Linear Shaft Diameter 12mm Harden Chromed Linear Motion Shaft Rod CNC Parts 1pc (Size : Length 400mm) : Industrial & Scientific
Amazon.com: (2) Pieces - 12mm x 8mm x 1000mm Carbon Fiber Tube - Pultruded Round Tube. Super High Strength for RC Hobbies, Drones, Special Projects : Industrial & Scientific
Amazon.com: 8 Inch Long 10 Pack Premium Borocilicate Glass Tubes 12mm OD X 8mm ID X 2mm Thick Wall Tubing : Industrial & Scientific
Amazon.com: ZIQI 16PCS Polycarbonate Rigid Tubing, 12mm (1/2") OD x 1mm Wall Thickness PETG Tube, 12.6 Inch Length Clear DIY Acrylic Tube Lexan Tubing : Industrial & Scientific
Amazon.com: MECCANIXITY Acrylic Pipe Rigid Round Tube Clear 12mm ID 16mm OD 305mm(12") for Lamps and Lanterns,Water Cooling System : Industrial & Scientific
Amazon.com: uxcell Silicone Tube 12mm ID x 16mm OD 6.56 Feet Flexible Silicone Rubber Tubing Water Air Hose Pipe White for Pump Transfer : Industrial & Scientific
Eowpower 8 Pcs Outer Diameter 0.5 to 12 mm, Length 300mm, 304 Stainless Steel Capillary Metal Tube Tubing: Amazon.com: Industrial & Scientific