Vial, crimp top, amber, write-on spot, certified, 2 mL, 1,000/pk. Vial size: 12 x 32 mm (11 mm cap) A- . $304.99. Aijiren 2 mL crimp top vials are constructed from Type 1 borosilicate glass, with low metal content, to protect your sample from destabilizing or leaching. Our associated crimp caps come with a choice of either PTFE/silicone.