Single-channel Micropipette, adjustable (0.1-2.5µl,0.5-10µl, 2-20µl,10-100µl,20-200µl,100-1000µl), 12-channel Micropipette , adjustable (0.5-10µl), Single-channel micropipette, electronic (0.5-10µl) and 12-channel micropipette, electronic (0.5-10µl) (EXPIRED)