EISCO Burette Clamp with Bosshead/Test Tube Holder - PVC Coated Round Jaws, Opens up to 45mm

This is super sturdy holds on to the stand easily

The screws on it are very cheap in the plating on the metals kind of cheap but the clamps all aluminum and holds everything in firm does the trick for 10 bucks you can't complain.But I've noticed a lot cheaper items on other websites of far better quality through West labsCheck them out that's where you going to get good quality stuff this extra shipping like Risco labs and prime you end up paying through the ice in the end that's all right if you like getting bent over the barrel

There wasn't anything remarkable about this clamp - it is exactly as described. It is sturdy, adjustable with the little wing nuts and clamp, and stayed in place when clamped. If you just need a sturdy clamp to hold a little beaker or vial bottle, this is a great choice. I have to fill a week's worth of single-use needles for my husband with medication that takes a while to enter the needles, and using this clamp (clamped onto a dowel rod inserted into a base that I made) allows me to fill the needles a little easier. It's like a third hand!

Decent product for the price. Works fine.

Once again, another Igor approved product.Igor is cheap labor, but a klutz. Ask him to fill a test tube and he just insists on trying to fill it while its sitting in a stand next to other open tubes.After the last explosion and fire, I knew it was either fire Igor and make a new assistant, or figure out something else.This doohickey was the perfect answer. It fits vials and tubes snugly but gently, the rubber or whatever protecting them from the metal. It can be adjusted to any angle and locked into that angle. It'll attach to pipes (because mad scientists have pipes running everywhere) and anything it can clamp onto.The only problem was that it took weeks to get Igor to quit attaching it to his finger where the test tube goes and trying to put the test tube where it clamps onto whatever surface it attaches to. -sigh- Maybe its time to make a new assistant.