All walkboards are made from Australian hardwood, meaning our boards will last through the elements with ease. Each Jouncing board comes with a cleat on the underside that suits most play frames and trestles. Age: 3+ yrs. Please contact us for more details about sizes available. Please note: To achieve maximum longevity from your outdoor wooden products, regular maintenance is required. Please inspect regularly, if looking weathered or grey, it's overdue for oiling. For best results oil at least every 6 months (depending on use and local atmospheric conditions) using either natural linseed oil or a plain food grade vegetable oil.