Description

Usage of safe suction bulb: To help the pipette or pipette to suck the liquid rubber ball. Instructions: Safe suction ball has three openings, which are used by the elastic force of the rubber to help suck the solution into the pipette or pipette. Be careful not to draw the solution into the ball. 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 a gap between the air and out. The absorption of the liquid can be controlled by the presence or absence of this void.