Aijiren Vial insert, 250 uL, glass with polymer feet, 100/pk Insert size: 5.6 x 30 mm - High Recovery Vials & Inserts UNSPSC Code - 58 Aijiren 250 ul Inserts with Polymer Feet,100/pk - Autosampler Vial Accessories - Ampules, Cuvettes, Tubes, and. Inserts & Shell Vials - Quzhou Lab Technology