This is a plain 25-32mm advanced adapter. The adapter is designed to fit around miniatures on 25mm and extend the base to 32mm. The adapter is designed to be attached in two halves. This adapter includes a bottom for the old 25mm base to rest upon. This enables a much better fit than the plain version. The bottom should be able to stick together in pairs to not require glue. But it is highly depending on the print and this might need some adjustment. Physical versions are sold in plastic on our webstore.