FixtureDisplays Clear Transparent Plexiglass Acrylic Tube 2" (50mm) diameter x 6" (152mm) long, 5/64" (2mm) Wall Thickness. Made from high quality acrylic. Great clarity. Easy to work with, can be saw cut, drilled, painted, lasered, glued, and heat formed. Use in any DIY projects such as industrial, science, plumbing, design, models, aquariums, crafts, and much more. Overall measures 6" long, 2" outside diameter, 5/64" (2mm) wall thickness. Weight is 0.13 lbs. To purchase acrylic glue please follow this asin: B08T8ZC1FJ. For clear acrylic disc: B07L61X48Y. For clear acrylic sheets: B01IUT4I7I. Recommend FixtureDisplays acrylic glue solvent based plexiglass cement item number 11310. Asin is: B08T8ZC1FJ Diameter and length measurements are nominal. If your needs are scientific and requires high precision, please contact us prior to making your purchase. Exact diameter is 49.999 mm (1.9685 inch). If your requirement is precise, contact us prior to your purchase. Video Instructions link: youtu.be/d8KgqgWo_kE. You can also search "15137 6 2 inch diameter 6 inch long clear acrylic plexiglass 2mm think wall tube diy fixturedisplays" on youtube to locate the video. To order caps, please follow this asin B0BRSP4RBW FixtureDisplays Clear Acrylic Tube 2" (nominal) Diameter (1.9685" exact outside dim) x 6" Long, 5/64" (2mm) Wall Open Ended 15137-6"-1PK-NF