Target Convenience Kits with your choice of wide-opening 2 mL, 12 x 32 mm Vials, Caps or Seals, Septa and Polyspring Inserts. Simplifies ordering, one catalog number for 100/pack component combinations. Packaged in a bench top storage compartment. Provides handy, dust-free storage for vials and caps or seals. I-D vials have a write-on patch with graduations at 0.5, 1.0 and 1.5 mL.