Conveniently arranged and complete, all the components necessary to safely sample amniotic fluid are contained in each tray. This sterile, single-use tray improves efficiency by reducing preparation and clean-up time between procedures. All needles are high quality, and the ultrasharp 20 gauge spinal needle provided in each tray facilitates depth positioning through the incorporation of etched centimeter marks along the length of the cannula. Prenumbered amber vials are provided to protect light-sensitive samples.