0.3mL Vial Inserts, Glass, Conical Base, 200 pcs/pk,Micro . Series:Insert Vial. Vial Height Bottom Type:Conical. Micro-Insert 31 6mm, clear,Bevelled bottom,for 9-425 screw top. Product Information (Insert Vials). Glass Type:5.0. 250uL Pulled Point Conical Glass Insert, 100pk. 250uL Pulled Point Certified Conical Glass Insert, 100pk