... rot resistant,easy processing,shockproof,heat preservation,sound insulation. EVA puzzle,eva board,eva foam puzzle.1)Water durable: Closed-cell foam, non-water-absorbing ... safe, odorless and non-polluting.3)Easy processing: Continuous; easy hot-press shaping, casting, gluing and joining.4)Shockproof :Good flexibility ... )Sound insulation: Closed-cell foam, good sound insulation capability eva foam puzzle