18 inch Higer Design The heavy duty fire ring features an 18-inch raised design for better wind protection and heat gathering compared to other 12 inch fire pit ring. High Quality Material The fire pit ring 48 inch is made of 0.8MM thick high-quality galvanized steel, which can withstand high temperature baking for a long time. The surface coating makes the fire pit rings less likely to rust or corrode, extending its service life. Safety Performance The outdoor fire ring is solidly constructed to keep flames within a limited range. It provides a barrier to prevent the spread of fire and ensure a burning environment that ensures a safe outdoor experience for the user. Large Size This fire rings for outside wood burning measure 4 x 4 x 1.5ft, providing ample space for burning wood.