The ea khotsofatsa 'me motle 3 / 4 "X 1-1 / 2" a bataletseng oval sebopeho e fumaneha ka mekhoa e meraro ea ntseng bo eketseha posts by le liphetolelong tletseng bolelele. Sena se tiile, e boreleli sebopeho baka tsomule ntle le e fumaneha ka letlalo sekoahelo. Flat oval kopanya ergonomics ea oval 'nete le mela e trima tsa tubing likhutlo li' nè.