Graduated or ungraduated plastic pipets with integral bulbs, or used with accessory bulbs, for liquid transfers; graduated versions indicate total volume or may promise to deliver drops of specific sizes but volumes are usually approximate.
Transfer pipettes transfer liquid by aspirating and dispensing the liquid. To aspirate the liquid, the pipette should be in a vertical position. You want to aspirate the liquid at a 90° angle. Press the bulb, lower the tip into the liquid and release the bulb. The liquid will be suctioned up into the tube until it reaches the desired volume