Watch glass:high transparency design make you can see the thing state clearly, can be used to hold ph tester, temporary liquid holder,watch glass for laboratory
Laboratory cover:can be covered on evaporating dish or beaker to from falling into,laboratory glass cover
Chemistry watch glass:made of glass materials, craftsmanship makes them not be easy to bend or break,chemical experiment glass
Glass beaker cover:the compact size design is convenient for its storage, simple operation and convenient use,teaching watch glass
Laboratory beaker cover:constructed by using high-grade glass material, it safety and can use it with confidence,laboratory glass beaker cover