A solution is available for straw identification, Rods :
Rods are printable (max 135 characters and barcodes) and are easily noticeable since they are longer than straws. They are most often used to identify visotubes.
200
Length 137 mm
006330 white
006332 yellow
006777 red
006779 pink
006786 orange
006787 gray
006782 light blue
006783 pistachio
023872 turquoise
023871 violet
023870 putty
006331 yellow
006762 white
006763 red
006775 orange
006876 pink
006774 grey
