⚠️ Hole size: 2.5 x 1.2 cm This is not the size of a typical Japanese switch! It seems to be compatible with the black, small, up-and-down type switches, often called American switches! No box & screws are included! You should be able to find screws at a home center if you bring the item. Hand-painted on a resin-like material. There may be some unevenness, but I don't think there are any noticeable flaws.