*CRX2000-5003 Micro-Insert 31*6mm, 400ul, clear class, flat bottom, for 2ml 9-425 screw top glass vial, 100/pk * Compatible with Chrominex™ Vials only 8-425 Screw Top Glass Vial, narrow opening, 2ml Vial Volume 2ml, Vial Size 12x33mm, 8mm diameter Write-on Spot available Compatible with most common HPLC/GC instruments