Bareki ba lula ba khetha likhoele tsa polyester PET hobane e fana ka matla a ke keng a lekanngoa, polokeho le litšenyehelo tse tlase bakeng sa lits'ebetso tsa ho paka tse boima. Thepa ena ea likhoele e sebetsang hantle ka tikolohong, eo hangata e tsejoang e le likhoele tsa tšepe tsa polasetiki, e fana ka matla a holimo ho tloha ho 160-1360 kg brea.