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40x197mm PS Test Tube, Round Bottom, with 40mm Plastic Cap, Natural (Pack 5) Karter Scientific 402V2

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$12.09

$ 6 .99 $6.99

In Stock
  • Large, oversized polystyrene test tubes with caps
  • Great for experiments
  • High storage capacity
  • The inside diameter is approx 38mm; converted to approx 1.52''.



IW - female - 61
Reviewed in the United States on March 30, 2025
These are plastic and could be fragile, but we're packed very well and we're undamaged.
JWilkins
Reviewed in the United States on December 3, 2023
These tubes were perfect for a non-waterproof bud vase which allowed me to put wate in for flowers.
Dennis J. Kulikowski
Reviewed in the United States on October 24, 2023
hard to seal as the pressure wants to pop the lid due to compression when putting on the lid. Also the plastic is a bit fragile.
Mr.chandler
Reviewed in the United States on August 1, 2020
Use these to store spare reading glasses. Clean masks,gloves or all at once as a mini kit . I seal them by tapeing the lid on. Thin wall plastic tube. Only cracked 1 sawing it shorter. Usually have 2or3 filled ones floating around in my backpack.
Terry G
Reviewed in the United States on February 7, 2020
I ordered these as vase tubes for the wood vases we turn. They came in perfect condition and work well for me.
Customer
Reviewed in the United States on May 19, 2018
Bought these to use as props in a recital dance to the song, “Weird Science.”Filled them with baby oil and water, and glitter. The lids wouldn’t stay on, so I hot glued them. They looked super cool.One met its fate when a dancer accidentally stepped on it. Another spontaneously combusted in a dancer’s hand (she swears she didn’t squeeze it!)As a prop, I’d totally purchase it again, and offer a caveat to all the dancers. I’d be hesitant to add water/glitter/oil—Is just paint the inside.
Mike Rogers
Reviewed in the United States on February 22, 2018
Sadly, these things are extremely fragile, even moderate handling causes them to flex and crack. The tops also won't stay on as they are a loose press-fit (not a screw-cap). Because the plastic tube itself is very thin and flexes quite a bit, it makes the tops even less likely to stay in place. I'm not sure what these would be good for since the tops come off at the slightest touch. Very disappointing overall.
Timothy Gager
Reviewed in the United States on May 31, 2016
Plastic Tube 1.5 Inches Wide by 8 Inches Long - Perfect for Holding Carving Tools / Chisels / Carving Knives can be damagedRolling Off a Table old way was to use aquarium type flexible tubingThen You Look For 2 Corks at the hardware storeBuying From KARTER SCIENTIFIC it cost $1.67 Per Carving Tool you want to ProtectBest Solution for Carving tools.OLD WAY_________
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