Sterile IV seals protect point of entry of IV admixtures from contamination and accidental double dosing. They have a dual warning system in which seals self-destruct upon attempted removal and needle punctures are highly visible in laminated foil. Having IVA® seals on bags instantly alerts staff that a drug has been added. Unused medication may be returned and reissued with confidence if IVA® seals are intact thereby reducing waste. Latex and PVC free. Silver in color.