These syringes are sterile single-use hypodermic syringes manufactured from high-quality laboratory-grade polypropylene and polyethylene, these syringes are free from latex, rubber, silicone oil, styrene, and DEHP. 20mL syringes are graduated to 24mL. They feature a positive safety stop to prevent accidental spills and ensure user safety. Each syringe is individually sterile strip packed, ensuring sterility and convenience.