50-piece soft rubber suction caps for precise liquid handling. These caps are soft, flexible, and nonslip for secure, easy operation. They fit a wide range of standard lab tools: measuring tubes, test tubes, glass droppers, liquid drops, eye droppers, and glass pipettes. Why you need them - Improve accuracy and reliability: secure grip helps control drops and prevent spills or cross-contamination. - Broad compatibility: universal fit minimizes tool-specific caps. - Hygienic and portable: suitable for transferring between workstations while maintaining clean workflows. What makes them better - Rubber material provides a gentle grip that won’t crush glass and resists slipping for precise handling. - 50-cap set ensures you have a cap ready for multiple tubes without reusing or swapping frequently. Use scenarios - In research laboratories for sample processing and reagent transfers during experiments. - In hospitals and clinics for routine liquid handling in diagnostic preparation. - In university teaching labs for demonstrations and student practice with liquid drops. Material and size - Material: rubber; quantity: 50 caps; compatibility with measuring tubes, test tubes, glass droppers, eye droppers, and glass pipettes. Designed for easy storage and quick access.