Designed for convenience, these silicone plugs are lightweight and portable, making them Ideal for travel or outdoor activities. Their waterproof properties ensure that liquids remain securely contained, while their flexibility allows for easy insertion and removal. A reliable choice for everyday sealing needs. Features -Color:White -Material:Silicone -Size:3.30X3.30X1.35cm/1.30X1.30X0.53in -Size:3.30X3.30X1.50cm/1.30X1.30X0.59in -Size:2.80X2.80X1.40cm/1.10X1.10X0.55in -Size:2.50X2.50X1.40cm/0.98X0.98X0.55in -Size:1.70X1.70X1.20cm/0.67X0.67X0.47in -Size:1.50X1.50X1.20cm/0.59X0.59X0.47in -Flexible fit: accommodates various bottle diameters, enhancing the versatility of your lab equipment -Secure silicone seal: silicone ensures a tight seal, preventing leaks and contamination -Temperature resilience: performs reliably in both freezing and hightemperature environments, maintaining sample integrity -Reusable design: easy to clean and reuse, supporting convenient and practical practices -Versatile applications: suitable for use as waterproof stoppers, sealing plugs, test tube caps, rubber bulkheads, and more Package list: 60 x Bottle Stopper Seal Plug