Clear test tubes: compact size for easy transport and handling; lightweight and portable; convenient as tube containers for storing samples and liquids with clear observation. Test tubes: ideal for storing samples and liquids; suitable for scientific experiments and propagation; reliable everyday lab tool as a scientific test tube. Tube containers: made from durable materials; resistant to freezing and temperatures; provides safe preservation of samples; designed with lids to seal contents. Lightproof test tubes: widely applicable in laboratory and scientific fields; versatile tool for professionals; sample tubes with lids that protect lightsensitive contents. Applications and use scenarios Laboratory experiments and sample storage: use clear test tubes to hold liquids or solids during analysis, observation, and setup, with easy visibility of contents. Field collection and propagation work: transport samples or culture materials securely, leveraging temperature resistance and secure lids for onsite work. Lightsensitive storage: employ lightproof tubes to protect photolabile substances and longterm samples from light exposure in both lab and field settings.