Theipi ea rona ea perforated e ka elelloa ka tepi ea washi le thepa e hlakileng ea tepi, boholo ba perforation bo ka etsoa ka mokhoa o ikhethileng le boholo bo tloaelehileng bo entsoeng keba bangbareki hangata e le 1.5in, mofuta ona oa mokhoa o ikhethang o bonolo ho iketsetsa koranta ea hau le letšoao la moralo.