Each Green tile is 24inx 24in (61cm x 61cm) x 12mm thick with 2 finishing borders. These non-slip, anti-fatigue mats are extremely comfortable yet durable and can be laid in minutes. A lightweight and mobile flooring solution with many applications. The holes allow any water or fluids to simply drain away. With the straight edges provided, you can make a perfect finish. Made from EVA material (similar to flip flops) with a closed cell foam structure will never stain deteriorate or fall apart. No special tools are needed to fit these tiles. Product meets CE regulations and has been tested for Compliance with European Standard on Safety of Toys. EN71 (2005) + A6 Part 1 Physical & Mechanical - EN71 (2005) Part 1 Labelling - BS EN71 (2006) +A1 Part 2 Flammability - BS EN71 (1995) +A1 +AC1 Part 3 Toxicity. Lead free, latex free, + 3 years up.