Kashi Scientific Self Standing Centrifuge Tubes 50mL, [50 Pack] Plastic Test Tube with Screw Caps, 50mL Sterile Test Tubes with Lids, 50 mL Skirted Tubes with Printed Graduation and Write-on Spot

Atendeu ao meu propósito que era acondicionar grãos de café no freezer. Gostaria que o plástico fosse mais robusto.

I use these centrifuge tubes to collect biological sample with. The caps and tubes are good quality. They work well for both liquid and solid collection vessels. They are affordable and for my purposes, they are exactly what i need. I will buy more.

These are good quality and they come in a sealed bag which keeps them sterile. I purchased them to be used as slants for mycology work but they were too small to work with.

Great value. I use these for banking frozen yeast with glycerin and they've worked perfectly. They seal nicely and don't leak, just don't overfill.

These worked great for my insect collection. They stand up that’s helpful when using liquid.