The Sensory Tactile Mat is vividly colored with lively shapes. Each piece has a different texture to enhance tactile sensitivity. The mats can be used flat or pieced together into frames or cubes. The Sensory Tactile Mat is made of high quality EVA foam. They are aroma free and non-toxic. The set includes 6 pieces each measuring 18.5"x18.5" by 1.18" thick. Ages: 2 years and up.