What is it? They're like grass but better. What are their features and benefits? These mats are weather-resistant. You no longer have to water, mow or fertilise. They also provide a safe playground for children, can be used for sports or even as a decorative accent. And they are easy to install or replace. Where can they be used? Grass mats are used in gardens, playgrounds, sports grounds, balconies and terraces to beautify and protect them.