2-Hole Rubber Stoppers - 29x33x32mm x 10pcs

Our Rubber Stoppers are made from high-quality rubber resistant to acids, alkalis, and ammonia, making them perfect for a wide range of science experiments. Ideal for sealing laboratory glassware, they support hands-on learning in chemistry, biology, and physics. Product Specifications:

• Dimensions: Bottom 29mm, Top 33mm, Length 32mm
• Pack size: 10 stoppers
• Material: Resistant to acid, alkali, and ammonia

Key Features:

• Durable and chemical-resistant
• Ideal for sealing flasks, test tubes, and beakers
• Essential for a variety of science experiments
• Pack of 10 for multiple uses

These stoppers are built for longevity and reliability in the classroom, making them an essential tool for your science curriculum.