Main features: High light transmittance, uv light through rate reach 92%, shorter curing time, better curing effect, higher print accuracy. More durable, release more than 30, 000 times (refer to the printed page); Be suitable for a variety of types of uv curing light 3d printers. Size a: peel off the protective film directly from the 3d menbrance, and then stick the base layer on the glue tank, instead of using a silicone membrane, it is more convenient to use. Size b dont have back glue, so it need glue tank around a fixed at the bottom of the device. Size: 210 * 290 mm