29*5.7mm Conical Bottom Low Volume Insert Suit for 9-425 Vial Variously Micro inserts designed for use with chromatography Flat Bottom, Suits for 10-425 Vials: 250uL Conical Micro-Insert, 31*5.7mm, Suits for 10-425 Vials: 250uL Micro-Insert with Mandrel Interior, & Polymer Feet, 29*5.7mm, Suits for 10-425 Vials: 250uL Conical Micro-Insert, 31*5