Features: Made of carbon silicon crystal glass, the build surface provides a strong adhesion in printing and easy to clean. Once the hotbed cools down to room temperature, the adhesion will be reduced and the models can be easily removed. Plate sized 235 * 235 * 3mm (9.3 * 9.3 * 0.1in), can be placed on top of existing hotbed surface and be held in place with simple clips. Super flatness, fast and uniform heating. As the hotbed heats to higher temperatures, it provides even more adhesion, especially for PLA material. Fits for Ender 3 and more 3D printer hotbed which can match the size of the glass plate.