Keep your light bulbs secure and safe from damage with this high borosilicate glass light bulb cover. This cover is made from high borosilicate glass. Stronger than normal glass, high borosilicate is durable and heat-resistant, which allows you to keep it near a light bulb without fear of damage. This glass cover is clear to allow light from the bulb to shine through without it being dulled. The shape of the cover fits nicely around the bulb for easy installation. Use this cover to ensure your light bulbs stay safe and protected from any unwanted damage. Overall Dimensions: Diameter: 3 1/4" Height: 6 3/4"