Molds hold approximately 5.5 ounces of wax (5.75 if poured all way to top) These are not "standard" size, they are larger than the common 6 cavity size. See picture comparing size to the standard 2.5 oz.
Sturdy, with a tight seal to ensure candles stay fresh but can still be opened and closed easily. Perfect for all types of wax or soap, pouring up to 160 degrees.