1. It is suitable for all planting and taking molds. It is not necessary to punch holes when planting the window to take the mold. It can directly remove the small piece and open the window, and the mold is accurate and clean. 2. Save time - no need to meet patients multiple times, no need for individual trays (reduced mechanics costs), the biggest cost savings. 4. Suitable for all impression materials and planting systems. 5. The handle is long and thick. When the silicone is taken out, the force is good. The bottom of the tray is thickened. There is a frame beam structure corresponding to the tooth position, which provides strong support, is not easy to deform, and is not easy to demould.