USA SEALING ZUSA-HT-4161 High Temperature Silicone Tubing 35 psi Operating Pressure, ID: 50mm, OD: 62mm, Length: 5 ft.: Amazon.com: Industrial & Scientific
12 Pack White Cardboard Tubes for Crafts, Empty Paper Towels Rolls for DIY Art Projects (1.7 x 10 Inches)
MECCANIXITY PVC Rigid Round Pipe 45.2mm ID 50mm OD 350mm Light Grey High Impact for Water Pipe,Crafts,Cable Sleeve: Amazon.com: Tools & Home Improvement
UDP T10005004 Clear Vinyl Tubing 3/16ID X 5/16OD X 300 ft Spool: Amazon.com: Industrial & Scientific
Amazon.com: Duda Energy HPpvc150-005ft 5' x 1-1/2" ID High Pressure Braided Clear Flexible PVC Tubing Heavy Duty UV Chemical Resistant Vinyl Hose Water Oil : Industrial & Scientific
Amazon.com: AC PERFORMANCE OD 4"(102mm), Length 11.8" (300mm), Straight 4 Inch 6061 Aluminum Pipe Tube Intercooler Pipe High Class Brushed Treatment Air Intake Tube : Automotive