An ƙera murfin PLA musamman don jerin kofunan sanyi na PLA iri ɗaya, kofunan siffar U, da kofunan rabo, suna dacewa sosai don hana zubewa. Akwai su a cikin salo daban-daban kamar murfi mai faɗi, murfi na bambaro, da murfi mai juyawa, suna daidaitawa da yanayi daban-daban na sha. Kayan da za a iya lalatawa gaba ɗaya yana lalacewa tare da jikin kofin ba tare da ragowar ba, kuma yana da takardar shaidar aminci ta abinci. Yana magance matsalar rashin daidaito tsakanin murfi na filastik na gargajiya da jikin kofuna masu lafiya ga muhalli, kuma shine mafi kyawun abokin tarayya ga kayan tebur masu lafiya ga muhalli.