250uL Micro-Insert with Mandrel Interior & Polymer Feet, 29*5.7mm, Suits for 9mm Vials 3. 10-425 Vilas Micro-Inserts Part No. I300 IV250-I(Economy) IV250 IP250-I(Economy) IP250 Description . Micro-Inserts--Aijiren HPLC Vials. Micro-Insert, 31*6mm Clear, Flat Bottom, Suits for 10-425 Vials 250uL Conical Micro-Insert, 31*5.7mm, Suits for 10-425