2mL Clear Glass Flat Base 11mm Snap Vial Wide Opening. 100pcs/pk. C0000 021. 2mL Clear Glass Flat Base 11mm Snap Vial Wide Opening with Label. 100pcs/pk. C0000 022. 2mL Amber Glass Flat Base 11mm Snap Vial Wide Opening. 100pcs/pk. C0000 023. 2mL Amber Glass Flat Base 11mm Snap Vial Wide Opening with Label. 100pcs/pk.