Sterile pen needles are designed for smooth, comfortable subcutaneous injections, helping ensure accurate medication delivery with minimal discomfort.

Benefits:
- Provides a comfortable injection experience with reduced pain.
- Short 4 mm length supports proper subcutaneous injection.
- Fine 31G needle helps minimize skin trauma.
- Compatible with most insulin and medication pens.
- Sterile and individually sealed for safe use.
- Pack of 100 needles offers long-term convenience.

Box Components:
- Pen needles 31G × 4 mm (100 pieces).
- Protective caps.
- Instruction leaflet.

Precautions:
- For single use only; do not reuse or share needles.
- Do not use if the package is damaged or opened.
- Store in a cool, dry place away from direct sunlight.
- Keep out of reach of children.
- Ensure proper attachment to the pen before injection.

Side Effects:
- Mild pain or discomfort at the injection site.
- Slight redness, swelling, or irritation.
- Rare allergic reaction to materials used.