Kukho iindlela ezahlukeneyo zokudibanisa imibhobho yobhedu, unxibelelwano lwe-Ferrule yindlela yoqhagamshelo lweklasi kwaye isasetyenziswa ngamanani amakhulu. Ibonakaliswa ngoxinzelelo oluphezulu kunye nokuxhathisa kobushushu.
