I am usually skeptical in regard to lab glass from China, but these funnels worked just fine. None have stuck. This source is a winner.
6PCS ESD Anti-Static Stainless Steel Tweezer Set Tweezers Maintenance Tools
Jun 20, 2018
Awesome sause
High performance in a low cost package
Rubber watch Tube Crown O-Ring Box Set 1.4 to 2.8 mm For Waterproof Watches Seal
Jul 27, 2017
Great little kit
What can I say other than you get a heck of alot of O-rings for a couple of bucks. Admittedly, they are often mixed up between compartments, but it's a couple of bucks...