Amazon.com: Beduan Push to Connect Fitting, 5/32" Tube OD Pneumatic Quick Adapter Tubing Air Hose Line Pipe Fitting (Pack of 12) : Industrial & Scientific
Amazon.com: Kwweeoo Black Aluminum Round Tubing OD 50mm ID 47.6mm WT 1.2mm 260mm Long 2 Pack, Black Color Aluminum Round Tube OD x ID x WT x L 1.97 x 1.87 x