Blood Tube Package 4: 1) Swing Out Rotor with round buckets, 4 x 750ml 2) Adapter, 30 x 2-7 ml blood tube, 120 tubes per run (set of 4) 3) Adapter, 21 x 10 ml blood tube, 84 tubes per run (set of 4) 4) Sealing lids, set of 4 pcs