Safe and reliable suction design The opening of each suction ball contains a small inner ball inside the rubber tube. By pressing the side of the inner ball against the tube, an air gap is formed to allow air to escape, enabling controlled suction. Durable and safe materials Made of rubber material that is resistant, safe for use, and durable over time. Efficient suction with three openings The suction ball features three openings that utilize the elastic rubber action to help draw the solution into the pipette. Easy to use Simple and convenient to operate, helping pipettes draw liquid with minimal effort. Key attributes Function: facilitates drawing liquid into a pipette through a built in suction mechanism. Material: rubber, designed for safety, resistance, and durability. Design detail: three openings for effective suction. Performance: enables smooth and controlled liquid uptake. Use scenarios Routine laboratory pipetting: drawing reagents or samples into a pipette during preparation. Biological workflows: enabling efficient uptake of staining solutions or buffer liquids. General lab tasks: transferring liquids between containers with simple, reliable suction.