
I was surprised to use them: I usually spray little nozzles as fast as I can until the sprayer trips over itself, then use what comes out to clean it, but they just don't stop spray, I accidentally keep using it like 1/4 of a bottle and trying to see if I can mess things up. If something is so well done that I can't stop it on purpose, it gets 5 stars. They are also ideal for cleaning with hydrogen peroxide as they are darkened.

ULAB Scientific 1000Ml Borosilicate Glass Beaker With Printed Graduation - Durable And Accurate For Lab Use (UBG1005)
12 Review

3Pcs 500Ml CVNDKN Wash Bottles W/ Scale -16 Oz: Plastic Safety Lab Squeeze Bottle
13 Review

Get 24 Pack Of 4 Oz. Amber Boston Round Glass Bottles With Droppers From GBO GLASSBOTTLEOUTLET.COM
11 Review

Laboy Glass 500ML Single Neck Round Bottom Boiling Flask Heavy Wall With 24/40 Joint Heating Reaction Receiving Flask Organic Chemistry Lab Glassware
16 Review

Semi-synthetic engine oil IDEMITSU Zepro Euro Spec 5W-40, 4 l, 3.84 kg, 1 pc.
26 Review

California Gold Nutrition CollagenUP por., 464 g
23 Review

Atlas Scientific Calibration Solution 125Ml
3 Review

Premium Grade DMSO Roll-On - Non-Diluted 99.995% Low Odor - 3 Oz. Bottle - BPA-Free Container
10 Review