Single Sealed Packaging - Each 1 ml 31G 1/2" syringe is individually sealed. You can choose between packs of 20 or 100 units Material - Each 1 ml 31G 13 mm syringe is made from laboratory-grade plastic, ensuring precise dosing every time Clear Markings - Prominent unit markings and a smooth plunger allow for accurate dosing, easy gripping, and control Versatile Use - Suitable for scientific laboratories, experiments, plant nutrient solutions, ink cartridge refilling, industrial dispensing, glue and adhesive applications, and more Note - Not for clinical or professional medical use. Intended solely for industrial, scientific laboratories, and scientific research purposes Tip: Not suitable for professional medical use. Specially designed for industrial, scientific laboratory, and experimental use, or as DIY tool