1. Butterfly Wings:
- The "double wings" refer to the winged structure on either side of the needle hub. These wings provide a larger surface area for the healthcare professional to hold and stabilize the needle during insertion.

2. Needle:
- The needle is the pointed metal component used for piercing the skin and accessing the vein. In a butterfly needle set, the needle is typically smaller in gauge and attached to flexible tubing.

3. Scalp Vein Set:
- The term "scalp vein set" indicates that this needle set is designed for use in veins located on the scalp. However, butterfly needles are versatile and can be used in various veins, including those in the arm.

4. Flexible Tubing:
- Connected to the needle, the flexible tubing allows for the transfer of blood or fluids to and from the patient. The length of the tubing provides flexibility during the procedure.

5. Winged Infusion Set:
- The butterfly needle is sometimes referred to as a "winged infusion set" due to the presence of the wings on either side of the needle hub. These wings assist in holding the needle securely during insertion.

6. Safety Features:
- Some butterfly needle sets may have safety features, such as a mechanism to cover the needle after use, reducing the risk of needlestick injuries.

7. Luer Lock Connector:
- The needle is typically attached to the tubing using a Luer lock connector. This standardized connection ensures a secure attachment to other medical devices, such as collection tubes or IV lines.

8. Color-Coding:
- The wings or other components of the needle set may be color-coded for easy identification of needle gauge or other specific features.

Butterfly shaped wings facilitate easy handling and attachment with skin The proximal end of the set is provided with flexible female luer fitting Rigid luer lock fitting also available on specific demand Butterflies are color coded for instant identification of needle size Butterfly is connected to soft non toxic, non-irritant, medical grade tube, which does not kink or coil set.

What is scalp vein set?
Winged infusion set — also known as “Butterfly or scalp vein set” is a device primarily used for venipuncture. It consists of a hypodermic needle, two bilateral flexible wings, flexible small bore transparent tubing (20-35 cm long), a connector (female Leur). Sizes 8-24G (22 and 23G are most common).

What is a scalp vein needle used for?
A Butterfly or scalp vein set, also known as a winged infusion set, is a specialized device used for drawing blood from a vein and giving medication or intravenous (I.V.) therapy into a vein.