- You cannot add "Kopperko 10 Pack Borosilicate Glass Syringe - 1ml Syringe, Heat Resistant Luer Lock Syringe for Labs - Glue Syringe for Use With Liquids, Glue, Oils, Ink - Bonus 14GA Blunt Tip Non-Hypodermic Needles (850012147015)" to the cart because the product is out of stock.