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High-grade assorted rubber stoppers for lab experiments
✔️ Set of 30 solid rubber stoppers in 11 sizes from #000 to #8, made from durable material for leak-proof sealing in scientific use.

This assortment of solid rubber stoppers serves as essential seals for lab containers like flasks, test tubes, and bottles, typically found in educational labs, research facilities, and DIY science projects.

✅ 11 sizes ranging from #000 to #8, with quantities like 12 pieces of #000 and 2 pieces each for most others
✅ Constructed from high-density rubber that resists non-aggressive chemicals for reliable performance
✅ Solid design ensures a tight, leak-proof fit for various containers in experiments
✅ Package totals 30 pieces, ideal for multiple lab applications

💡 Why do labs rely on solid rubber stoppers for sealing containers?
Solid rubber stoppers offer a straightforward way to keep experiments secure.
- They block out contaminants and maintain pressure in setups
- Handle exposure to common chemicals without degrading quickly
- Fit a range of container sizes for easy, on-the-spot use in fieldwork or classrooms
- Cut down on spills, making them a go-to for precise measurements