Specification Brand : VINGVO BulletPoint1 : 【Premium Material】The Quantitative Suction Bulb is crafted from rubber, offering exceptional durability and corrosionresistance. Its robust construction ensures long-term use in laboratory settings and maintains integrity even when exposed to various chemicals. BulletPoint2 : 【Three-Way Openings】Featuring three strategically placed openings, the Safety Pipette Filler utilizes elasticity to assist in drawing solutions. These openings are engineered to provide efficient suction while preventing unwanted liquid intake into the bulb, ensuring accuracy in measurement. BulletPoint3 : 【Controlled Suction】The Lab Pipette Filler Bulb incorporates a unique small ball mechanism. This feature allows users to control the liquid absorption effortlessly by creating an air , providing and preventing overfilling, enhancing safety and accuracy. BulletPoint4 : 【Universal Compatibility】This Rubber Pipette Filler is versatile and fits pipettes of various sizes and types. Its adaptability makes it a good addition to any laboratory or educational setting, offering dependable performance for diverse applications. BulletPoint5 : 【Easy using】Designed for convenience, the Rubber Pipets simplifies liquid transfer. With its user-friendly design, this suction bulb allows for in dispensing liquids, making it an essential tool for professionals and hobbyists alike. Color : Assorted Color ItemDisplayDimensions_Length : 4.72 inches ItemDisplayWeight : 0.42 pounds ItemName : Quantitative Suction Bulb, Safety Pipette Filler Rubber Pipette Filler Lab Pipette Filler Bulb Pipetting Ball Quantitative Suction Bulb Rubber Pipette Filler Lab Pipette Filler ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 10 centimeters ItemTypeKeyword : science-lab-pipettor-accessories ItemVolume : 632.4 cubic_centimeters Manufacturer : VINGVO Material : Plastic ModelName : Aumotopwio5ca2vs1 ModelNumber : VINGVOw1s2pkfm84 NumberOfItems : 1 PartNumber : VINGVOw1s2pkfm84 ProductDescription : 1. Made of rubber material, , and to use. 2. Easy and convenient to use, help pipettes to draw liquid rubber ball. 3. Suction ball has 3 openings which are used by elastic rubber force to help suck the solution into the pipette. 4. Be careful not to draw the solution into the ball. 5. in the opening of each ball has a small ball in the rubber tube, as long as the side of the ball can be pressed between the ball and rubber tube to form gaps between the air and out. 6. The absorption of the liquid can be controlled by the existence or absence of this interspace.