Watch Glass Beaker Cover Set, 6 Pcs Lab Watch Glasses in 150mm, 100mm, 70mm for Laboratory, Science and Chemical Experiment (150 mm x 2, 100 mm x 2, 70 mm x 2)
LEAD-FREE GLASS: Environmental friendly lead-free glass is the best material for making a watch glass, which is reusable, non-toxic, and easy to clean
3 DIFFERENT SIZES: Our watch glasses come in 3 different sizes: 150 mm, 100 mm, and 70 mm, which are great for various uses
MULTI-FUNCTIONS: They not only can be used for vaporizing liquid, but also can be used as a lid for other chemical containers
STERILE PACKAGE: All of them are packed with clean packaging so you don't need to worry about the facts that will affect your experiment results
PACKAGE CONTENTS: Lab Watch Glasses in 150mm x 2, in 100mm x 2, in 70mm x 2. Due to the glass material, this product may break during delivery. If you receive defective items, please let us know via email to get replacement items or a full refund