Umbhobho , ukwabizwa ngokuba ngumpu we-pipette esi sisixhobo sokulinganisa ukudlulisela ulwelo kwisitya sokuqala sesinye isikhongo. Isetyenziswe ngokubanzi kwi-biology, ikhemistri kunye namanye amasimi. Imibhobho isetyenziswa ngokubanzi kwiilebhu zeklinikhi ngenxa yesakhiwo sabo esilula kwaye sisebenzisa lula. Isakhiwo sayo esisisiseko sibandakanya iindawo ezininzi ezinje ngewindows, amalungu ohlengahlengiso lwamacandelo, i-piston, i-o-ring, i-tube ye-cube kunye ne-nozzle).