Shinetek 985800 Vial Rack, 12.5mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4500-LGZ) Shinetek 868805 Vial Rack, 23.1mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4495-LGZ) Shinetek 868806 Vial Rack, 28.1mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4496-LGZ) Shinetek 868808 Vial Rack, 30.0mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4497-LGZ) Shinetek 868810 Vial Rack, 17.1mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4498-LGZ) Shinetek 985750 Vial Rack, 9.5mm, Shinetek Instruments Research Institute (CAT#-STEM-L-4499-LGZ)