With this laboratory quantitative ball, you can easily perform precise experiments in your labs. The three-way quantitative feature allows for accurate and controlled , making it ideal for various experiments and procedures. Features - Color: Black -Material:silicone - Size: 14.00X6.00X6.00cm/5.50X2.36X2.36in -Three-way ball is perfect for laboratory , nice to help suck into the pipette. -This quantitative ball that is designed for various experimental needs, useful and practical. -Its three-way quantitative ball design makes it easy to accurately extract liquids. -The sleek exterior is easy to identify and distinguish, and made of silicone materials that are reliable. -The ball is simple to use and operate. its versatility makes it a valuable tool in laboratories and facilities. Package list: 1 x Pipette Filler Bulb