24-place aerosol-tight QuickLock swing-bucket rotor S-24-11-AT for Centrifuge 5427R: 24 x 1.5/2 mL tubes, Max speed 16,050 x g (12,700 rpm), includes 6 x 4-place swing buckets, includes QuickLock lid, which requires 1/4 turn, certified aerosol-tight for use with hazardous materials