Pipette head selection of high-quality imported raw materials, a variety of specifications: 10UL, 20UL, 50UL, 100UL, 200UL, 1000ul,5000ul. Product design to provide you with excellent liquid handling results. And goes through a strict quality control procedure to ensure consistency which gives the suction head a good flatness and reduces the coefficient of change. No DNase, no RNase, no heat source, no endotoxin, no PCR inhibitor pipette is produced in 100,000 purification workshop.