Discover the reliability of the Thermo Scientific VWR 4 mL Screw-Thread Vials (Model: VWC4015-66A). These vials are designed for secure storage and transport of samples, featuring a robust screw-thread design that ensures a tight seal. Made from high-quality glass, they are resistant to chemical reactions, making them ideal for various laboratory applications. Each vial holds up to 4 mL of liquid, providing ample space for your samples. The included caps enhance leak resistance, ensuring your contents remain safe and uncontaminated. Perfect for research, pharmaceuticals, and more!