Ukukhetha izinto ezifanele ze-3D flexible drag chain—inayiloni, ama-polymer aqinisiwe, noma amamaki akhethekile—kuqinisekisa ukuqina, kunciphisa isikhathi sokungasebenzi, futhi kuhambisana nezidingo zakho zokushisa, umthwalo, amakhemikhali, kanye nesivinini.