Spring steel plate with high chromium content, easy to bend and clean. Much easier to remove prints and avoid damages during the process, especially for small prints. Good corrossion resistance and prevent rust. Brushed surface provides better adhesion, ensure a perfect print. Please adjust the z limit switch after installation. It should be a little higher. You can print a spacer to compensate the difference. If you do not receive instrucstions coming with the product, please refer to the last 2 pictures we listed on the product webpage which contains instructions in details. Any other questions or issues about the product please feel free to contact us. The magnetic base offers powerful magnetics, ensure perfect fit with steel plate. The two easy lift tabs(handles) make it easier to remove the steel plate from the magnetic base.!!! Please clean up your build plate with alcohol to make sure there is no any resin or dust left on the surface. The build plate must be clean