Amazon.com: K&S Precision Metals 9812 Heavy Wall Aluminum Tube, 10mm O.D. X .76mm Wall Thickness X 300mm Long, 1 piece per pack, Made in the USA : Industrial & Scientific
Amazon.com: 2pcs 304 Stainless Steel Tube,7mm/0.28" OD X 6mm/0.24" ID,250 mm(9.84") Length Round Metal Pipe Tube : Industrial & Scientific