VWR® 11mm Crimp Top Vials. 2mL, 12×32 Crimp Top Vials and Inserts. • Superior quality borosilicate glass. • Vials feature a write-on patch with graduation General Chromatography – Aijiren. Amber, graduation marks and write-on spot. 100/pk . Amber headspace crimp top vials with graduation marks and write-on spot, .