I-razor wire iwuhlobo lwezinto ezivamile zokuphepha ezidumile emhlabeni jikelele.Ibizwa nangokuthi i-concertina wire noma i-barbed tape ngenxa yokuma kwayo.Iqukethe izindwani ezibukhali nezintambo zensimbi zangaphakathi.Isetshenziswa kakhulu efekthri, ejele, ebhange, ezindaweni ezimbiwa phansi, emngceleni noma kwezinye izindawo ukumisa ukungena okungekho emthethweni ukuze kuvikeleke futhi kuvikelwe.