Perfectly solves the problem of being difficult to drill with traces. It is Healthy and environmental, nontoxic and no smell. ABS of good quality is used, solid and durable. Can hold upto 1.5 KG. Six Hooks you can adjust them in any direction. Just spin the button to vent gas, the hook will be fixed firmly. 1 of the top 6, hanging more vacuum suction hole without knob design, fetch very convenient. The Hook by the position you want to install, turn the knob to lock the unlock position.