$32.00 Quantity: Add to cart More info 10mL Clear Serum (Headspace) Vials, 23x46mm, Ream of 100 Elongated neck (headspace neck) allows for automated robotic arm handling and filling. Appropriate washing, rinsing and sterilizing, if required, must be performed by the customer and end user. These 10mL serum vials are NON-STERILE.