The PEI sheet is combined with 2 parts, a flexible steel platform coated with PEI surface and a magnetic bottom sheet with adhesive on the back. The PEI comes applied.The PEI sheet is easy to use, simply stick the magnetic bottom sheet onto your heated bed, then place the steel platform with PEI surface on the top. The maximum temperature for printing is 130 on the bed. adhesion can be achieved when the temperature of the heated bed is about 60, you can print directly on the PEI sheet without using any glue or other tools to help the model to stick onto the sheet. You do not need to worry about the prints curling with a 60 bed temperature. It also can print , the temperature of the hotbed needs to be about 80-85Prints come off the surface when the temperature of the heated bed reaches room temperature. If the print is still stuck, gentle flexing of the plate will help remove it.The size of glass bed is 235*235mm(9.25*9.25inch), it is applicable with 3 Pro, V2,3S, 3X, 5 Pro,-20, -20 Pro and similarly sized machines.Colour:As ShownMaterial:PEI+steelSize:235x235mmPackage Contents:1 * Flexible Steel PlatformOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.