An yi munduwa da bakin karfe, aikin hana ruwa shiga, dukkan munduwa zane ne mai zagaye, saman yana da santsi, yana sheki, yana nuna zinare mai haske. Bangaren kayan ado na gaba yana ɗaukar wani tsari na musamman mai ramuka masu kama da juna don samar da tsarin ado mai kama da sarka, yana ƙara ma'anar girma uku da kuma yanayin ƙira na munduwa. Hanyar buɗewa ita ce danna maɓallin don buɗewa, diamita na ciki na munduwa shine 62mm, faɗin babban jikin munduwa shine 6mm, nauyin shine 44g, jin yana da nutsuwa, yana nuna yanayin.