Ana onse amakonda kusewera mchenga, ndipo mchenga umasewera gawo loyenera ndi ana oyenera kusukulu.

Masewera amchenga opangidwa ndi pulasitiki wapamwamba wa LLDPE kapena bolodi la hdpe.

Kukhazikitsa mchenga ndikosavuta, sungani zomangira monga zojambula.