15-425 Chovala Chakuda cha PP chipewa ali ndi gawo la 15mm lakunja, zomwe zikutanthauza kuti ndizogwirizana ndi Mbale zomwe zili ndi kukula kwamutu ndikuwuma. Zikopa izi zimapangidwa kuchokera ku zinthu zapamwamba monga polypropylene. Kapinolipizi ka polypropyylene ili ndi mawonekedwe abwino osindikizira ndipo amaperekanso kukana kwamphamvu kwamphamvu kuphatikiza ma asidi, mowa, malkali, zinthu zamadzi, zodzoladzola, ndi mafuta apabanja. Mphamvu za Polypropyylene zodziwika bwino zimadziwika chifukwa zabwino zimakhudza mphamvu, kuchita bwino, komanso kuperewera.
Zippops zimapangidwa ndi mipata yapamwamba kwambiri, zimakhala ndi mawonekedwe a kampu kapena kutseka kwa snap autosamurs, Setamited Shetta yochepetsera mwayi wodetsedwa mukamasunga nthawi yokonzekera mu labu. Zida za SNAP zimapereka chisindikizo chotetezera, kuchepetsa kusinthasintha ngakhale zitsanzo zomveka bwino, dinani zomveka bwino zimatsimikizira kuti chidindo choteteza chidapangidwa ndipo chipewa chimagwiritsidwa ntchito bwino.