EarthOx Sterile Serological Pipettes 100ml (Individually packaged) (10 Pipettes)

Update - Reduced to 1 star. Worst lab supply product I have ever purchased. Regardless of the applied use... I pull in 60 ml of liquid.. dispense it... place pipette yo the side for 1 min to prep sample... go back to the transfer pipette and cracks appear everywhere... no bumping.. no caustic substances.. no heat.. no pressure.. I verified no hairline cracks anywhere prior to use. Once you dispense ..there is a window of time and then self destruction.Original review.Upon opening package I noticed multiple pipettes had hairline fractures in them.. one was completely cracked. Although the hairline cracks did not directly leak fluid... it allows enough air in to cause the vacuum to leak and cause constant drips out of the dispensing end. Not a good situation for our lab environment. I gave 2 stars as without the cracks.. the product seems to work well. I will say +-2% is a big deal if you are dispensing small volumes...literally can be off by 2 mililitres... if you are dispensing 3ml at a time.. does this mean each dispensed amount can be off by 66% potentially? Time will tell.