Cardiff window sill in Sterling grey. The sill is installed on the window or door sill and allows water to flow away from openings. This range of ornamental stones will enhance the exterior appearance of your home with a distinctive look similar to ornamental stones of days past. Such features as high density concrete, longer window sills and jambs, as well as its four finishes available make for a durable and aesthetic material. Cardiff accessories also offer great flexibility for numerous applications. Supplier: Permacon Specifications Width: 3 1/8 inches Height: 5 7/8 inches Length: 37 3/8 inches Weight: 57 lbs