【6 Different Sizes】Our watch glasses come in 6 different sizes: 50mm,70mm,90mm ,100mm,120mm,150mm, which are great for various uses.
【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; featuring a smooth surface and high degree of transparency. note: cannot be heated directly.
【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】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; we will solve it until satisfied.