Those would be little plastic vials, like these, which are 3” long x 1/2” dia in translucent white with black gasketed screw caps. Hold 2ml (0.067 oz), which is all you need for certain things--and hey, it’s your lab or worskshop. Made in USA.

Keep your beads under control with this set of 3-1/8" x 15/32" transparent plastic bead tubes with caps. Our each is (24) tubes in a handy little clear bucket with a snap-on top and a small carrying handle. Equally suitable for traveling with glitter, sand or sprinkles, and each tube has a 6g capacity.

Vials is a much nicer name than little skinny bottles, doncha think? These amber glass vials are 5/8" dia with a 5/16" ID and come with a gasketed black plastic screw cap. You pick the short one, at 1-1/2" tall and holding 2ml (0.135 oz) or the tall boy, 2-1/2" tall, holding 8ml (0.27 oz).

You pick from our clear glass vial collection, all with gasketed black-plastic screw caps. The small vials hold approx 2ml and measure 1-3/8” tall x 9/16” dia with a 9/32 (approx 7mm) ID. The larger vials hold approx 5ml and measure 2-1/4” tall x 19/32” dia with an 11/32” (7mm) ID.

We got these clear glass vials in. They hold 15ml (just an earwig’s teardrop over 1/2 oz), and measure 2-1/4" x just over 1" dia, with a 1/2" ID mouth. They’ll be perfectly happy when closed with #00 rubber stoppers or #3 corks. Made in the USA.