Micro-Insert 31* 5mm, clear class, flat bottom, 100pcs / pk: SVI09250C: Micro-Insert 29*5.7mm, clear class, conical bottom with assembled plastic spring, 100pcs / pk: For 9-425, 10-425screw top and 11mm crimp top vial: SVI09300C: Micro-Insert 31* 6mm, clear class, conical bottom, 100pcs / pk: SVI09400F: Micro-Insert 31* 6mm, clear class, flat