36 SQUARE FEET: 36 interlocking puzzle pieces, 12"x12" each, with 24 border pieces, covers a 6'x6' area when combined, or just use a portion to cover a small area EDUCATIONAL: Bright primary colors with pop-out letters and numbers help to stimulate your baby's early childhood development SAFE: The soft, textured EVA foam is free of toxic phthalates and creates a comfortable play area for children ages 3 and up; There may be a temporary odor upon opening, but this is normal and not harmful; air out the product before use for 3-7 days PROTECTIVE FLOORING: High density, durable foam provides protection for your child in areas with wood or tile floors EASY TO USE: The puzzle pieces are quick and simple to assemble and can be pulled apart easily for storage; material is easy to clean