With these puzzle mats, children can learn to handle letters and numbers in a playful way. There are no limits to the children's imagination. The puzzle pieces can be easily removed from the mat. Tested according to the European standard EN 71. Formamide tested. Prevents injuries on hard floors. Made of child-friendly EVA foam. Protects against cold floors. Sound-absorbing, insulating, moisture-resistant, and non-slip. Promotes the child's motor skills, imagination, and creativity. Durable and washable. Easy assembly through interlocking pieces. Versatile use (play area, carpet, tent floor, seat cushion, etc.). Can be endlessly expanded with additional sets (puzzle mats with the same interlocking design). Suitable for indoor and outdoor use. 36 puzzle mats, 86 individual pieces (when the letters and numbers are removed from the mat).