The support feet of this bed frame are made of thickened steel and multi-layer baked paint surface, which is rust-proof and pressure-resistant. The single-foot support force far exceeds that of ordinary styles. With a height adjustment range of 10 to 17 in. it can easily handle various uneven ground surfaces and ensure that the bed remains level and stable at all times. The widened and thickened base, in combination with the silent and anti-slip rubber pad, increases the force-bearing area, reduces pressure, and not only protects the floor but also eliminates abnormal noise. It comes with 4 support feet, 8 sets of 2.36 in. extended bolts and hexagonal nuts, and 4 auxiliary installation plates. Whether the bed frame has reserved holes or not, you can complete multi-point reinforcement in the corners, sides or center within 1 minute. Say goodbye to the trouble of bed board collapse and crossbeam deformation caused by excessive mattress weight. 1 time investment, long-term peace of mind.