Perfect: For adding a new dimension to your outdoor living space! Environmentally-Friendly: Made from recycled tyre rubber. Overall Dimensions: 45cm H x 45cm W x 2cm D. Product: Get these River Rock Step Stone! Sizes: Available in a 1, 2, 4 or 8 pack. Durable: They are suitable for all weathers, all year round due to their durability, they won't crack or break, no matter what the weather.