Opens 4 sizes of ampoules (1ml - 10ml). No need to handle glass ampoule as it is encased inside the opener. Opens glass ampoules with a smooth, clear action, capturing the head inside the ampoule opener to be disposed of accordingly. Can be used as a stand to hold the ampoule in place while drawing out the liquid. Can be easily dismantled into 4 parts for sterilisation according to local protocols.