2.0ml Microcentrifuge Tubes, Assorted, Boilproof, Polypropylene, 1 Bag of 500 Tubes/Unit

for all your scientific needs.

Everything came as described. Hard solid quality for product. They even sent me a pack of m&ms. Chocolate is definitely a mind stimulator, helps feel happiness. Kudos.Even a catalog is also sent for airtime ordering ! Great Job !

Good purchase and good service, delivery of the product in a timely manner, the product and the packaging are not damaged.

Love these. Work excellent on ants. Put in your bait . No worries about anything

I bought this product to hold the scented cotton swabs I use for scent work training with my dog. I cut off a portion of the bottom so the scent can come out. I bought the 500 piece multiple colors because it came in 6 colors and she is on 6 scents. Perfect! Delivery was no issue, vendor it came from included a nice letter thanking me for my purchase, along with a bag of M&Ms! That was a nice surprise and just nice customer service.

I bought these for my science olympiad forensic style event. My plan was to fill the tubes with unkown liquids that the kids need to identify. I was hesitant - none of the reviews indicated if the tubes were water tight. After filling them and closing the attached lids - I put the tubes in a rack to ensure there would be no leaking. Since these are centrifuge tubes ... they are pointy on the end and don't stand up - so one group of kids TURNED THEM UPSIDE DOWN and set them on the lids - which btw - they stand up beautifully on their lids. No leaks!

I wasn't sure what to expect with these tubes being so affordable, but they (shockingly for the price) don't leak and have held up well so far on air travel!

creo que ha sido una de las mejores inversiones que he hecho por un bajo costo ya que estos ependorf se pueden autoclavar y así estar estéril, los he usado en mis proyectos de investigación donde criopreservo las bacterias que voy aislando para su por análisis y no he tenido problemas de contaminación o daño a la sepa por algún químico.