SimPure Centrifuge Tubes 15mL, Conical Tubes Sterile 50 PCS, Polypropylene, Leak-Proof Screw Caps, Plastic Container with Graduated and Write Marks, Non-pyrogenic, DNase/RNase Free, Human DNA-Free

Been using mine for several years now, they are part of my foaling kit. They work really well, I have never had problems with them leaking. Will certainly buy more when I run out!

I needed long narrow containers to put rooting powder on my plant cuttings. This fits my needs very well.its of good quality plastic. It’s Good value for what I paid and functions very well for my needs.

Worked great for fecal tests at my dog sanctuary. I purchased along with a centrifuge and the product holds up well. The quality of the product is excellent and as described. The amount you get is a great value for the price. They are very easy to use and sealed wonderfully in the centrifuge.

These 15 mL centrifuge tubes are a great addition to my kit. You get a generous quantity for the price, which makes them perfect for prepping multiple samples without worrying about running out. The plastic feels sturdy, the caps seal well, and they’ve held up fine through sterilization — I’ve run them in an autoclave/pressure cooker with no warping or melting issues. They are on the smaller side at 15 mL, but that’s expected and not a downside for what I use them for. Overall, solid quality, reliable performance, and great value for the amount you get. Would definitely buy again.

Excellent product! Good materials. Reusable in our chem lab.

Reenactor who found the powder measures for black powder way too expensive. These are easy to use, plenty big/small enough, and priced right.

These tubes are perfect for my purpose. They are the perfect size and having the label on them makes it easy to keep track of what I have in them. Though I will be using them for the germinating of my venus flytraps. It's great that they come with the screw on lids. I definitely recommend this product for what ever your needs are from science projects to seed germinating.

Good quality

El pedido no llego, posteriormente el proveedor, se comunicó conmigo y mando el material sin costo por los problemas ocacionados.