Description: High-quality, heat-resistant glass biological test tubes, perfect for various analytical and biochemical applications. These tubes feature a smooth, even rim, differentiating them from chemical test tubes. Designed without stoppers, they are ideal for conducting reactions and preparing small quantities of solutions. Made from NS glass, these are designated as Type P, Execution 2 biological test tubes.
US: temporary delays — postal services aligning new import rules, 
EU: 1–2 weeks, 🌍 Worldwide: 1–4 weeks ✈️