[CHROMINEX] CRX2000-5002 Micro-Insert 300ul, clear, bevelled bottom, for 2ml 9-425 screw top glass vial, 100/pk Add to cart [CHROMINEX] CRX2000-5001 Micro-Insert 250ul, clear, bevelled bottom with assembled plastic spring, for 2ml 9-425 screw top glass vial, 100/pk