GE 60W Rough Service Teflon Coated Light Bulbs New In Package 6 SINGLE LIGHT BULBS - 3 PACKAGES 60 WATT 130 Volt Shatter-Resistant Teflon Coated S hatter resistant bulb but if broken Rough Service light bulb has a protective coating that helps contain fragments.Can be used for both indoor and outdoor use. Rugged filament withstands rough handling and shock.