*High quality - the product is resistant to acid and alkali, abrasion and pressure, with long service life and wide range of application. *Adjustable range - set the range at a glance. (1-10ml). *Advanced design - special tip connection design for easy observation of tip sealing, safe tip cone filter prevents internal contamination and pipette damage. *Precision Pipette Tips - Easy to calibrate and maintain with the included tool. *Manually operated for convenience. Digital display for clear reading of volume set up. *Portable and versatile - generally used in laboratories, biology, chemical tests and all experimental procedures.