Health Care Logistics offers calibrated window strip vials that allow users to view the amount of medication inside each container. Vials are available in amber and white, are calibrated from 4 mL to 30 mL, and feature clear window strips. When used with calibrated droppers, they enable delivery of oral liquid narcotics and similar medications. White droppers are calibrated at 0.25, 0.5, 0.75, and 1 mL and at 5, 10, 15, and 20 mg, and black droppers have nine calibrations from 0.2 mL to 1 mL. Caps also are available to secure vial contents.