Micro-Insert with Mandrel Interior, & Polymer Feet, 29*5.7mm, 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 . 3.10-425 Thread Caps With Septa. Part No. SNC101101: SNC102101: Description: White PTFE/Red Silicone