Metal mostly. Just to sum it up anything that is a conductor (except for the one that leads an orchestra)
Electricity cannot pass through materials that are insulators, such as rubber, plastic, glass, and ceramic. These materials have high resistance to the flow of electric current, preventing electricity from easily passing through them. Metals, on the other hand, are good conductors of electricity and allow electricity to flow through them easily.
Electricity cannot pass through materials that are insulators, such as rubber, paper, and plastic. These materials have high resistance and do not allow the flow of electrons easily.
Electrical current cannot pass through materials that are insulators, such as rubber, glass, plastic, and ceramic. These materials have tightly bound electrons that do not move easily, preventing the flow of electricity.
Electricity can pass through conductive materials such as metals and water. Insulating materials such as rubber and plastic do not allow electricity to pass through them. The ability of a material to conduct electricity is determined by the movement of electrons within the material.
A conductor
Conductivity is the property that allows heat or electricity to pass through a material. Materials with high conductivity allow heat or electricity to pass through easily, while materials with low conductivity inhibit the flow of heat or electricity.
Electricity is unable to pass through them
Insulators
wood, crystal, diamond, stone, granite
Opaque materials.
Generically they are called conductors.
Materials that do not allow electricity to pass through them are called insulators. These materials have high resistance to the flow of electrical current, preventing the movement of electrons. Examples of insulators include rubber, glass, and plastic.