Putties is a type of material used to fill cracks and holes in walls, ceilings, and other surfaces. It is a type of paste-like substance that is applied to the surface and then smoothed out to create a seamless finish. Putties are often used to repair cracks and holes in plaster, drywall, and other surfaces. The term 'Fills the Cracks' is often used to refer to the process of using putties to repair cracks and holes in walls and other surfaces.