The Gel Candle Company's premium fragrance oil quickly fills a room with aroma using a warmer or aroma diffusers. Each glass bottle is filled with .33 ozs. of your favorite oil and topped off with a built in dropper giving you up to 30 hours of full strength aroma! Our oils can also be used to renew our aroma bags and Gel Melts. The following products can be used with our premium oils. Aroma Bags Gel Melts Warmers