Vial insert, 250 µL, glass, conical with polymer feet, 25,000/cs (250 x 100/pk) 11 or 12 mm. 250 µL. 25000 Case. 23,792.00 USD. Quantity. Vial insert, conical, polymer feet, case of 250 packs of 100 (25,000 inserts) Insert size: 5.6 x 30 mm. See all product information.