Unique Design: The Aoodor smokeless fire ring features dual ventilation and a double-layer structure to maximize airflow and promote secondary combustion. This design ensures a cleaner, more eco-friendly fire pit experience—ideal for your next party Large Capacity: With an overall diameter of 36 inches and an inner diameter of 30 inches, this fire ring offers a spacious and deep design, providing an ample burning area Sturdy Material: Made from iron and coated with a black matte powder finish, this fire ring is built to endure harsh weather and intense flames, ensuring long-term use Smokeless Fire Ring: Enjoy smoke-free fun. 1) Use a stone or brick base for added stability. 2) Leave air intake holes on the bottom of the base for air circulation. 3) Note: This fire ring has no bottom; we recommend laying down sand or stones to protect the ground Wide Range Application: This fire ring can be easily disassembled for easy storage and transportation, allowing you to DIY an outdoor fire pit in the yard, field or beach, and easily create a romantic and warm atmosphere for any occasion Want to make your backyard party more charming and warm? Our double-layer fire ring is designed with multiple air inlets, allowing you to enjoy a warm, smoke-free atmosphere when your campfire is burning. Made of high-quality iron and fixed with screws, it is easy to assemble and can withstand the test of time and the effects of inclement weather. As an insert for a masonry fire pit, the matte black finish blends seamlessly into the night, allowing you and your guests to enjoy a charming flame under the stars.