SPL 20 ml Sample Tube, PP/HDPE, 25 x 73mm 25 Pack

I use them to hold powdered horse supplements. They work great.

Great product, great value. Good for mixing small quantities of plant hormones.

I wanted one but the smallest quantity was 24 but it was exactly what I was looking for

Good quality products and perfect for science projects and Science Fair presentations. The test tubes are clear to observe any chemical changes that may occur, and easy to transport (caps prevent spilling).

Just as described. Exactly what I was looking for to carry a single dose of liquid medication around for emergencies. Has not leaked and if just the right size.

These are a nice size and shape but they flex too much and leak when they flex in my pocket.

These test tubes worked great for my chemistry research.

They are not water tight