Transition cap, Eliminates gaps between bullnose corner bead and baseboard or crown molding, No need to caulk or fill, Can be used with plastic or metal corner bead, and with baseboard or crown molding up to 4-, 25"" in width, Installs quickly and easily, Saves time and money, 75"" radius, Length: 9, 75, Width: 4, 75, Height: 6, 75 SKU: JNSN44706