Specification Brand : equlup BulletPoint1 : RUBBER MATERIAL: Pipetting ball is made of rubber material, which is extremely wear proof and keeps its performance stable and safe to use even when it is exposed to various solutions for a long period of time, greatly extending its service life BulletPoint2 : 3 OPENINGS: The 3 openings in the lab rubber suction bulb take advantage of the elasticity of the rubber. When squeezing the rubber ball, the air inside is squeezed out, forming a negative pressure, so that the solution can be smoothly sucked into the pipette, easy to operate and effective BulletPoint3 : NOTE: In the process of using the quantitative pipette filler, special care should be taken not to inhale the solution directly into the ball, so as not to affect the elasticity and sealing of the rubber ball, to ensure the accuracy of the pipette, to bring you a better experience of use BulletPoint4 : SMALL BALLS DESIGN: Safe in the opening of each ball has a small ball in the rubber tube. Simply pressing gently on the side of the ball creates a gap between the ball and the rubber tube, allowing air to escape smoothly and providing great convenience for pipetting BulletPoint5 : EASY TO USE: Quantitative suction bulb is designed to be easy to use and is a powerful assistant for pipetting liquids. A simple pinch is all it takes to draw up liquids, which greatly improves the efficiency of your experiments ItemName : Quantitative Suction Bulb, Rubber Lab Safe Pipette Ball Red Safe Pressure Pipette Filler with 3 Openings for Industrial and Llaboratories ItemPackageDimensions_Height : 6 centimeters ItemPackageDimensions_Length : 15 centimeters ItemPackageDimensions_Width : 10 centimeters ItemTypeKeyword : science-lab-pipettor-accessories Manufacturer : equlup ModelNumber : equlup8e91r42nqc NumberOfItems : 1 PartNumber : equlup8e91r42nqc ProductDescription : Features: 1、Made of high quality rubber material, wear proof, safe and sturdyto 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、Safe 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.