These Kids Soft Eva Foam Interlocking Mats are made from High Grade Soft Eva Foam Material with 1.2cm thickness to provide comfort cushion and protection. The Heavy Duty and Non Slip textured Surface provide excellent grip and is completely waterproof, making them easy to clean. These can be used indoors and/or outdoors. Interlocking mats are simple to put together and can be used for various purposes like Baby Nursery, Kids Play Room, Kitchen, Garage, Outdoors, Gym, Fitness, Exercise, Tents, Safety, Disney Houses, Floor Carpet Protectors, Laminate Underlay, Infant Toddlers Crash and there are many more uses. Measurements Each Mat is 1.9ft (58cm) X 1.9ft (58cm) = 3.8SQ Ft (0.34m2) / Each Set Contains 4 mats, and one set will have 4 colourful mats. This includes Red, Yellow, Green and Blue.