Grow or gift with style using a 32×200 mm glass test tube for plant propagation in a concrete base either as office décor or a unique housewarming present.
Bring science-inspired style to your home or workspace with this 1.25x8" (32×200 mm) jumbo glass test tube planter. Set in a minimalist concrete holder, it’s perfect for rooting plant cuttings or showcasing a single flower stem. Whether displayed on a desk, windowsill, or kitchen counter, it combines botanical beauty with a clean, modern aesthetic. Durable borosilicate glass resists cracking due to water temperature changes, while the ceramic base provides weight and stability making it ideal for everyday plant propagation or gifting to a fellow plant enthusiast, coworker, or teacher.
Buy just one tube or save with tube & stopper combos. No one beats our quality & price even with "free" shipping.
Activity: Root Observation in Transparent Media
Students or hobbyists can track how roots grow in clear water columns over time.
Compare light vs. shade placement or different plant types (e.g., basil, ivy, pothos)
Demonstrate environmental effects on root elongation and coloration.
Learning Outcomes
Observe early hydroponic growth stages.
Relate water quality and light exposure to plant health.
Understand transparent vessel advantages for teaching propagation.
Promotional / Retail Use
An ideal eco-gift or merchandising display for garden centers, floral boutiques, or corporate welcome packages. Offer it as a ready-to-gift propagation vase; just add a cutting and a tag such as “Grow with us” for employee welcome kits, or use it in green office branding. Because Indigo Instruments sells single tubes without bulk minimums, small businesses and DIY makers can source only what they need.
32x200mm tubes have rounded bottoms & require support to stand upright
Completely unmarked for branding use
32mm (~1.5"); 200mm (~8")
Tube capacity/volume is ~125 ml/5 fl. oz
Note: Test tube diameter and length is nominal; there can be a variance of as much as +/- 0.5mm. We cannot guarantee they will fit test tube racks or stoppers we don't supply.
Reviews (8)
What customers say in Google Reviews (click on names for full review):
Holly Christensen: ...very well packaged, quick delivery times, high quality test tubes...great service!
Dave Mertz: The large test tubes were perfect for a vase project I wanted to do. The price was right and the shipping was very fast...great service!"
Kerri Kairdolf: Perfect size ...great quality...arrived quickly with no damage.
Deshana Barua...glass tubes to display my propagations...prices are very reasonable (it’s impossible to buy just a single piece from online retailers like Amazon...more
Anna Hovius: ..pleased with...Indigo Instruments - very helpful, very courteous and polite..you handled my very small purchase - like it was a...more.
Lindsay McLennan: Great service! I forgot to order the corks with my tubes... they..shipped out that day...arrived...within 4 days! WOW! Great company to deal with...more
Cathy Waitinas BEST quality... prices...customer service for consistent high-quality lab glass for...Lab, classroom, workshop or crafting projects. Order... just a few or boxes of 50 to 100…more
2022-05-14
Very High Quality! So happy I found these for work. My boss was impressed!
— Luis
2022-01-30
I am SO happy to have found these test tubes from Indigo Instruments. I hadn't heard of them before and had checked the usual large retailers of labware, but couldn't find this size. The price was VERY reasonable, and I appreciated being able to order them in the quantities that I needed, and not in batches of 100/1000/etc. They shipped super quickly and arrived in perfect condition. Couldn't be happier!!
— Allison
— Indigo:
Thanks for the feedback. We don't pad our prices so we can offer "free" shipping. Selling small quantities allows customers like you to fix their problems or test their product ideas without breaking the bank.
2021-04-17
Unfortunately, I ordered the wrong size. (I had taken the lip into account but not the width of the tube itself.) In spite of the order not working out, I found the price to be reasonable and the customer service was excellent. Someone reached out to let me know that it would save money to get two tubes instead of one, and I appreciated that there was a human processing my order who took the time to write me an email.
— Alison
— Indigo:
Thanks for the feedback. We try to review every order in case of product mismatches (tubes & stoppers or test tube racks)?or if there are overlooked cost savings. Glad we could help.
2021-02-18
I stumbled upon Indigo Instruments after searching the world around for this size with close to no luck. They happened to be out of stock, but they checked in almost weekly to give me updates on restock, shipping, and order information. When they were restocked, they shipped my purchase quickly and made sure I knew it was on the way. The glassware was shipped in tip-top shape and I couldn't be more pleased. Their prices are great and their communication is flawless. My only regret is that I didn't find them sooner.
— Kristen
— Indigo: Thank you for kind feedback.
2021-02-09
Super happy with this tube! It's perfect the perfect fit for the project I'm working on. Customer service was phenomenal and the tube was packaged safely for transit.
— Haley
2020-04-21
Just the right test tube with the quality that I was looking for, they look excellent for my project.
— Mahmood
2019-11-28
I used the test tube as an insert for a vase I made from polymer clay. Worked out very well. I also bought a beaker that I have not used yet but hope to make a polymer clay tripod to hold the beaker to be used as a small vase.
— Shar
— Indigo: Another fine use of lab glass for decorative purposes. Thank you for description.
2017-09-07
Great product, always arrives quickly and well packaged even to the other side of the world (Australia).
Thanks for the feedback. We don't pad our prices so we can offer "free" shipping. Selling small quantities allows customers like you to fix their problems or test their product ideas without breaking the bank.