1.5ml 11mm snap ring chromatography vial and cap with septa 250 uL Micro-Insert with Mandrel Interior & Polymer Feet, 29*5.7mm, suit for 11mm snap vials: 250 uL Micro-Insert with Mandrel Interior & Polymer Feet, 29*5.7mm, suit for 11mm snap vials, Economy package: 250uL Conical Micro-Insert, 31*5.7mm, suit for 11mm snap vials: 250 uL Conical Micro-Insert, 31*5.7mm, suit for 11mm snap vials, Economy package