Izilayidi ezisetyenziswa ngokuqhelekileyo zineentlobo ezimbini: uhlobo lweflange, kunye nohlobo lwesikwere. Eyangaphambili ingaphantsi kancinci, kodwa ibanzi ngakumbi, kwaye umngxuma oxhomayo ngumngxuma ofakwe imisonto, ngelixa umva uphezulu kancinci kwaye uncinci, kwaye umngxuma onyukayo ngumngxuma oyimfama. Zombini zinohlobo olufutshane, uhlobo oluqhelekileyo kunye nohlobo olude, umahluko omkhulu kukuba ubude bomzimba wesilayidi bahlukile, ngokuqinisekileyo, isithuba somngxuma womngxuma onyukayo sisenokwahluka, uninzi lwesilayidi sohlobo olufutshane sinemingxuma emi-2 kuphela.