Intambo yokushisisa yerabha ye-silicone isetshenziselwa isiqandisi/ifriji/uhlaka lomnyango wegumbi elibandayo, ububanzi bentambo yesifudumezi ngu-3.0mm,olunye ububanzi bentambo bungenziwa ngendlela oyifisayo, obufana no-2.5mm, 4.0mm, njll. Umbala we-silicone yerabha yokushisisa umbala unomhlophe, obomvu, ongaguquki, njll.Ubude buno-1M, 3M, 4M, 2M.
