Kayan kwandon kwandon da aka dakatar wani nau'in kayan da aka dakatar da shi ne ba tare da sauran laka ba, wanda shine sabon samfurin da aka ƙera akan tushen yawancin kayan aikin gyaran ruwa.
Spherical dakatar filler, wanda kuma aka sani da mai jujjuya mai jujjuyawar dakatarwa, shine sabbin samfuran samfuran da aka haɓaka don nau'ikan maganin ruwa na cikin gida da fasahar jiyya na biofilm.Yana da cikakken tsari mai girma uku a cikin maganin biochemical na najasa, yana da babban yanki na musamman, an sanya shi kai tsaye, ba ya buƙatar gyarawa, yana da sauƙin rataye fim, kuma ba a toshe shi ba.