This matting is made up of pure rubber and can be used indoors or outdoors, is suitable for creating stable, flexible and strong grassed surfaces. The tapered non-slip edging makes the mats unique and demandable.12mm thick mat is durable and flexible. There are drainage holes which are 28mm that assists in drainage. Ideal for caravan sites, pathways, playgrounds, bars, gardens, garages. Reduces fatigue and anti-slip. Offers insulation in wet and cold weather.