Kashi Scientific 5mL Clear Flip Cap Centrifuge Tube with Safety Lock Cap, Graduation and Marking Spot, Lab-Grade Polypropylene Plastic [5mL, 300]

Perfect for extracting DNA from strawberries. Super convenient for having a flat bottom to set on the table.

Good quality

Product as advertised. Shipping box was severely damaged upon arrival, but product survived without damage.

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

These get the job done. I did have a few explode on me in a 10000g centrifuge, but it may be my fault for leaving a non polar solvent in them for too long. Unless proven otherwise, 5* for good value.

These little plastic test tubes are perfect for pre-measuring coffee. I use them to portion out the right amount for each serving; I then freeze those servings, so you can enjoy premium coffee throughout the year without it going off. Super easy to clean and reuse.

I bought these for long-term storage of mycelium cultures on agar suspended in water. I filled them 1/2 full with water, and they withstood the pressure cooker @15 PSI for 20 minutes just fine. I’d buy them again if I ever need more. I would have preferred orange caps over blue so that sharpie writing would be more visible, but it’s not a flaw of the product.

Use them to hold charge for my 50 cal muzzleloader. Works great