The Helpix Professional set: Anti-rain + sponge + microfibre is used to protect the windows, mirrors and glass optics of the car from rain and accumulations of water, forming a thin, transparent film on the surface that helps repel water quickly and provides perfect visibility for maximum safety in bad weather conditions. Water that gets on the treated surface collects in large drops and is blown away by oncoming air currents or drains under its own weight if the car is stationary.