Universal 5ml 10ml Pipette Tips Racked

Work great

While you CAN just buy the pipet tips, assuming you have the pipetting device, generally you need a box to suff the long tip onto the device (the box has holder on the top). That way you don't have to handle the outside of the pipet too much. In this box are LOW-RETENTION pipets. Here is my text on that topic, the same comments apply here as when you buy a big bag of the tips: The KEY feature is that this pipet is supposed to be LOW RETENTION -- meaning that no liquid stays inside. Most lab solutions have no problem completely leaving the pipet, but if you have a solution with a SURFACTANT (think soap bubble solution) then it's a different story entirely. For nearly all analyses that would require use of such a pipet as this EVERY TEENSY spec of a drop has to come out. Soap bubble / surfactant solution do not behave that way. THUS one must acquire "LOW RETENTION" pipets not to be fussing forever (never mind how) to get all liquid to come out of a normal pipet. EPPENDORF no longer manufactures LOW Retention pipets. At work I compared my solution (sodium hydroxide AND surfactant) as pipetted by 1ml normal pipet and 1ml low retention pipet (both eppendorf). HUGE difference. But we will set the score of 0, "ZERO percent magic" to that solution I stated as came out of a normal eppendorf 10-ml pipet. We will set the score to 100 "100% magic" to the 1ml eppendorf low-retention pipet. I NEEDED low-retention in a 10-ml pipet size. Allegedly THESE BE THEM (just not made by eppendorf). What WAS their score? ANSWER: 80% MAGIC. That's gosh darn good. Consider that you cannot even GET a low-retention 10-ml pipet from eppendorf. Consider that these pipets are SO INEXPENSIVE by comparison. They work with eppendorf pipetting instruments (that you plunger with your thumb etc.) But geometry is not the point. LOW RETENTION IS (otherwise, if you don't need that, buy any pipet tip). AND LOW COST is an excellent bonus. These are less than half the price of eppendorf.

Excellent sales service, the product meets all requirements. Thank you

Very good

Love everything about it

it was ok, but the machine was not working

The quality of the box and pipette tips look okay. However, they do not fit on a Thermofisher Finnpipette (1-10 ml, or 2-10 ml).

Perfect setup for ease of use

I had trouble finding tip that fit the Pearl 10mL pipetter.