Accu-Fine Pen Needles are sterile insulin pen needles designed for subcutaneous injection of medications. Each needle is 6mm in length with a 31G (0.25mm) thickness, providing a comfortable injection experience. The package contains 100 single-use sterile needles. This is a medical device product manufactured by Accu-Chek. The needles are compatible with standard insulin pens and feature a universal screw system. The 6mm length is suitable for subcutaneous injections when used with proper injection technique. Each needle is individually sterile and intended for single use only.