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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
and group problem-solving
Durable construction supports long-term use in educational environments
ready for spontaneous creativity
Quick Start Guide and spare parts
Test Tube Rack - Poly, 18 x 25 mm L1-Science-L2-Physics-L3-Electromagnetism and group problem-solvingThese Silicone Stoppers (12 mm) are designed to seal test tubes safely and securely during experiments. Made from durable silicone rubber, they withstand exposure to heat and chemicals, making them ideal for repeated use in school science labs. Their flexibility ensures a snug fit while maintaining a secure seal perfect for experiments involving shaking, heating, or storage. Educational benefits: Teaches students how to safely seal test tubes during
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