Transfer bacterial cultures without risk of contamination with disposable loops. Use loop end to uniformly streak gel surface; use needle for removal of colonies. Choose polypropylene (PP) loops for more flexible handle use and acrylonitrile butadiene styrene (ABS) loops for more rigid handle use. Come sterile for immediate use. 20 loops per zip bag. Lot to lot traceability on loops. Measures 4mm diameter by 200mm length.
Not for me
Sadly, I HATE them. The loop is so thick! I have no doubt it holds the 1ul it states, but in a thick loop: it's hard to pick a small colony with them. They also do not fit snuggly in the bottom of a PCR tube, so when I put the colony in there and swirl the loop to detach the microorganisms, I cannot "squish" them againt the tube walls to help open them. But maybe that's just me.They are VERY flexible, which does not help with colony picking. It would be good for liquid colonies spreading on agar plates, but found the plastic loop to be a bit rough (at least the batch I got), which shears the agar.I'll go back to my other brand, which is half the price and is clearly better suited to my needs.
Love these. Great to use with inexperienced students to keep environments sterile.