TM-FLEX Magnetic Removable Build Surface Kit

Great build plate for a great price. It is less expensive than anything out there. I've bought the 410x410 version. It is only coated with smooth PEI on one side which is better imo. You can choose to use PEX surface from whambam. Their price is 2x than tiny machines. They also have a very good selection on bunch of other 3d supplies.

Had a slight issue where I received the wrong size, but that was fixed quickly. I love their flex build plates and now have them on all of my printers.