Autosampler Vial 9-425 Screw Top Glass Vial, Wide Opening, 2ml, Clear, Write-On Spot, 100/pk Part Number: CRX2000-1001 Vial volume 2ml Vial size 12 x 33 mm, 9 mm diameter Wide opening to prevent syringe problem Write-on spot available Compatible with most common HPLC or GC instruments