Premium 30G x 13mm Luer Lock Needles – Science and Lab Use Ensure you’re fully stocked with these 30-gauge, 13mm (½ inch) disposable needles, designed for reliable performance and secure compatibility with standard luer lock syringes. Each needle is individually sterile packed, ensuring cleanliness and product integrity. The box of 100 needles provides great value for laboratories, classrooms, and experimental setups. Ideal for a wide range of non-medical uses such as science projects, industrial applications, crafts, and veterinary environments. Not for professional medical use. Only for industrial, science lab ,experiments using or as home tools.