The high transparency of the barrel permits the end user a strict control on the foreign substance and liquid f The high transparency of the barrel permits the end user a strict control on the foreign substance and liquid flow. The inerasable graduation permits an easy reading ,40 unites and 100 unites is available. The medical grade silicon oil is used as the lubricant the purpose of getting a smooth plunger movemnet. Sterilized by EO gas,non-toxic,non-pyrogenic,single use only. Material f