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

False branding. Sold by Kashi Scientific from the US. However, the packaging says Ningbo Medical Instruments, made in China.

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.

Not sterile. The outer and inner bags of this product was punctured in multiple places, making the product no longer sterile. Do not purchase if you require sterile tubes.

Great product with multiple applications. Very good price and good quality

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.