Molly plug, gypsum expander, metal expander, commonly known as, is a very useful screw for mounting various items that need to be attached to a wall made of plaster. Whether it's a painting, hook, or shelf that needs to be mounted, the molly plug is a highly practical product.
A gypsum expander is installed in the desired wall and can support heavy objects. Using a regular screw in a plaster wall, or even a screw with a plug in a plaster wall, is not something we recommend. This applies especially to heavier items like paintings or others. However, with a gypsum expander, you won't need to worry about whether the object is too heavy, and you can easily and smoothly hang up whatever you desire.