Ubugcisa Boluntu I-arc eguquguqukayo yongeza incasa elula kwisixeko esiphithizelayo. Iibhola ezimbini zibekwe emazantsi womacala omabini ukwenza i-arc ibe noxinzelelo. Ibhola ngokwayo inolangazelelo lokuthatha indawo ejikelezileyo, nto leyo eyenza kube nokwenzeka ukucinga ukuba ukugoba kwe-arc kubangelwa ziibhola ezimbini na. Imigca entle yongeza umdla kunye nobuhle kwibala lesixeko.