Lucky Reptile terra bark pieces are a robust, natural looking hiding spot for your reptile or amphibian. Providing a good hiding area for your reptile is essential to prevent stress and keep him happy. Lucky Reptile terra bark caves will look great in any reptile or amphibian terrarium or vivarium. The resin is finished to give a natural wood looking effect. The weight of the resin prevents the caves being moved easily by your pet. Resin makes the item easier to clean and more hygienic than natural wood.