Tired of using your cell phone timer to accurately measure the cool-down times of your quartz nails? Now you don’t have to! Introducing the 3-in-1 Shot Clock Carb Cap Timer. This timer features a 30 second, 45 second, and 60 second sand timer so you can measure the cool down time of any quartz nail! The 60 second white sand glows in the dark! Made from stainless steel, it is safe to use as a carb cap on your quartz bangers, too.