This item: Aijiren 0.15mL Vial Inserts, Glass, Conical Base, 100 pcs/pk · 2mL Autosampler Vials with Writing Area and Graduations, 9-425 HPLC, Screw Cap, White Vials Catalogue v10.indd - Labicom.cz Vial inserts allow the use of smaller sample volumes with 1.1mL, Clear glass, conical bottom (requires support part number 27335)