ntoya kandi yoroheje ikirere cyumwenda mwiza kandi mwiza.Ibyuma bifata ifu irambuye ya spray yamavuta, Ntukigere ugira ingese kandi ukomeze kugaragara neza, gukora neza hamwe n urusaku ruke, imikorere yoroshye, sisitemu yo kugenzura urukuta hamwe no kugenzura kure.kubaka kubaka bikozwe mumpapuro zikonje. Byoroshye guhinduranya ikirere, ubugari bwinshi burahari: 900 , 1000, 1200, 1500, 1800 na 2000mm.