This Bed Frame adopts sturdy wooden slats and solid metal rails to provide stable support for the mattress. The combination of high-quality materials high-end manufacturing technology and a maximum capacity of 800 lbs provides free and relaxing sleep. All surfaces of the Bed Frame have no sharp edge design, which can prevent unnecessary accidents in the bedroom. The curved headboard covered by high-quality linen fabric can be adjusted to suit different mattress thicknesses. Recommended mattress height is 10''-12''. All labeled parts, required tools, and clear assembly instructions are carefully packed in one box for a better assembly experience. All parts are labeled with corresponding numbers. A durable wooden slat platform provides better support and less sagging for the mattress without the need for a box spring and extends the life of the mattress. Slats are spaced 4 inches apart.