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U.S. Art Supply Extra Large Black Telescoping Drafting Tube - Outside Diameter: 7-1/4 inch, Inside
uxcell 1.0 mm Dia. Black Heat Shrinkable Tube Shrink Tubing 6M 19.7ft: Vehicle Amplifier Tubing: Amazon.com: Industrial & Scientific
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Amazon.com: PerfectPrime PT1302, 304 Stainless Steel Static Tube, 130 x 60 mm (5.13" x 2.34") Length : Industrial & Scientific
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