Amazon.com: Melodica Tube, 53cm Length 16mm Dia Plastic Flexible Melodica Pianica Tube Mouthpiece with a Mouthpiece for Musical Instrument Organ Harmonica : Musical Instruments
Corning Pyrex Borosilicate Glass Heavy Wall Rimless Ignition Tube, 16mm Outer Diameter x 125mm Length (Case of 288): Science Lab Culture Tubes: Amazon.com: Industrial & Scientific
Amazon.com: ANPTGHT Silicone Tubing 12mm (1/2") ID x 16mm OD Food Grade High-temperature Pure Silicone Hose Tube Clear Pipe for Home Brewing Air and Liquid Transfer (Length 3 Meter- 9.84FT) : Industrial
Amazon.com: METALLIXITY 6063 Aluminum Tube (16mm OD x 5mm ID x 300mm L) 2Pcs, Aluminum Round Tubing - for Home Furnishing, Machinery, DIY Handicraft : Industrial & Scientific
Amazon.com: ARRIS 330mm 16mm x 18mm x 330mm Glossy Surface 3K Roll Wrapped 100% Pure Carbon Fiber Tube for Quadcopter Multicopter (2PCS) : Industrial & Scientific
Amazon.com: MYCZLQL OD 16mm Round Tube, Stainless Steel Seamless High Pressure Pipe (Color : OD-16mm-500mm-long, Size : ID-11.43mm) : Tools & Home Improvement
Greiner Bio-One 169501 Test Tube, 16 mm Diameter, 152 mm Height, 20 mL Nominal Volume, Polycarbonate (Pack of 1500): Amazon.com: Industrial & Scientific
Amazon.com: 3/16" ID (5 mm) 7/16" OD (11 mm) Food Safe Certified (NSF 51) Vinyl PVC tubing Multipurpose Tube for Beer Line, Kegerator, Wine Making, Aquaponics, Air Hose, Clear (10 Feet) : Home & Kitchen
Amazon.com: Stainless Steel Round Tubing Tube OD 16mm Wall 1mm Length 830mm, 0.63" x 0.04" x 32.68" Long, 10 Pack 304 SS Round Tubing 1mm Thickness Brushed Polished Finished from Bopaodao :
Corning 70800-16 Pyrex Vista Beaded Rim Test Tube, 16 mm OD (Pack of 50): Amazon.com: Industrial & Scientific
Amazon.com: FULAIERGD 1/2 inch Tubing (1/2" ID x0.6-0.63" OD) 16mm to 1/4 inch Irrigation Tube Anti-Drop Barbed Hose Fittings (Fits 13mm ID / 4mm ID) (1/2 to 1/4 inch Four-way) : Industrial
Amazon.com: uxcell PETG Tubing Hard Tube 12mm ID, 16mm OD, 0.5m/20inch Length, Clear for PC Water-cooling System 2pcs : Electronics