Teflon Coated Pre-Sterlized Body Piercing Needles. Needles are sterilized by Ethylene Oxide Gas. All needles have a 3 year shelf life from date of sterilization. Needles are coated for smoother piercing through the body. You will feel the difference immediately, no need for lubricants when using these needles. Made by engineers with over 20 years needle making experience for the Body Art industry.