Here's why:

* Insulators resist the flow of electricity.

* Conductors allow electricity to flow easily through them.

Plastic is a non-metal material and does not have free electrons that can carry an electric current. This is why it is used to insulate wires and other electrical components.

While a golf tee itself might not be involved in any electrical circuits, its insulating properties are important because it's often used in contact with metal golf clubs.