Review on 🔬 Efficient Stainless Steel Transfer Pipettes by Youngever: Essential for Precise Fluid Handling by Lindsey Baker

UPDATE: I didn't know that some rollerballs get stuck a bit and bottles need to be filled to get them rolling. At the moment it has been adjusted and I would say that in terms of quantity and price they are good! PREVIOUS REVIEW: I gave this 2 stars because of the colored glass BUT like other reviews here the top reels don't actually roll and I tried the method given in one of the questions to use the "tool" but everything still didn't work didn't work! I popped out the stainless steel ball with an eyeglass screwdriver, took out an EXACTO knife and cut out the area where the ball sits slightly larger to allow the ball to roll and release the oil. So if anyone is stuck with this try to fix it BUT I won't be buying this outfit again SHISH!