10pcs Laboratory Silicone Stopper Test Tube Caps - Hollow Plug for Experiment, Non-Toxic & High Temperature Resistant(33-38mm)

Quantity 10 piecesScope of application: Can be used for test tubes, bottle stoppers, or other bottlesFeatures: neutral, breathable, non-toxic, high temperature resistant, , soft and durable, and has good electrical insulation, oxygen, light, anti-agingOrigin: Chinese Mainland

• Includes 10 pieces of silicone stoppers, perfect for laboratory experiments and various applications.
• Made from non-toxic, breathable silicone, ensuring and reliability during experiments.
• Hollow devise allows for easy insertion of gas hoses, making it ideal for a variety of scientific applications.
• Resistant to high temperatures and corrosion, these plugs maintain their integrity under extreme conditions.
• Soft, durable material provides excellent electrical insulation and anti-aging properties, ensuring long-lasting use.