The halo is a curved wishbone-shaped structure that surrounds the cockpit of a Formula 1 car.
It was first introduced in 2018, to improve the safety of drivers during races.
The structure is attached to the car in three places, surrounding the driver’s head at the top of the cockpit and attaching to the front of the car.
This design provides the least obstruction to drivers while they race on the track.
It acts as a shield which protects the driver by deflecting or absorbing impact from major accidents or crashes, as well as flying debris.
The bar structure is made of titanium and is designed to hold the weight of a London double-decker bus.
There was much criticism when the halo was first introduced, but its effectiveness was demonstrated over the years.
Governing body, FIA made the halo mandatory across all ‘formula’ series in 2018.