Amazon.com: Lvcky 50 pieces clear plastic test tubes 12 x 75 mm with push cap, 5 ml : Industrial & Scientific
Parker Legris 0127 12 00-pk5 Legris 0127 12 00 Brass Tube Support, 8 mm Sleeve OD x 12 mm Tube Diameter Brass (Pack of 5): Amazon.com: 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
Amazon.com: uxcell Clear Rigid Acrylic Pipe 41mm(1 5/8") ID x 45mm OD x 305mm(12") Round Tube Tubing : Industrial & Scientific
Amazon.com: 2" bag filling tube #12 by Smokehouse Chef. Fits the size #12 meat grinder only. You round discs should be 2 3/4" (69mm) to confirm you size. : Home & Kitchen
Amazon.com : TubeeQueen Kraft Heavy Duty Mailing Tubes with End Caps - Art Shipping Tubes for Document Storage, 2 inch x 12 inch Useable Diameter and Length, Pack of 24 : Office Products