Burette, Acrylic, 50mL - Class B - 0.5mL Blue Graduations - With PTFE Key Stopcock Category_Science Gifts 25-inch Atwood machine with two

25-inch Atwood machine with two 2-inch blue-plastic pulleys on an aluminum rod

Needle valve and flame stabilizer add precision control to this nickel-plated micro Bunsen burner running on natural gas for small-flame work

supporting small-feature eye anatomy teaching

Reproduces Ewald von Kleist's 1745 charge-storage device with concentric metal cups around a plastic dielectric

an Erlenmeyer flask

Burette, Acrylic, 50mL - Class B - 0.5mL Blue Graduations - With PTFE Key Stopcock Category_Science Gifts 25-inch Atwood machine with twoShatter resistant acrylic burette with a PTFE key stopcock and Class B accuracy per DIN ISO 385, compatible with dilute acids, bases, and aqueous titrants.