ITS A SAFE ! Hidden Inside A 4" Pillar Candle Is a Secret Storage Metal Compartment. Premium Fossil Finish - 100% Vegetable Candle Wax. Metal Container with threaded insert hidden inside candle. Each candle is individually hand poured. Compartment dimensions are 2 .5" Diameter by 3.75" Deep. Every Candle Safe is made in Phoenix, Arizona, USA. We use a special 100% environmentally friendly vegetable wax. Our wicks DO NOT contain a lead core. Each candle is individually hand poured and as with all hand poured candles, no two are exactly alike. These natural variations give each candle their own unique design and are a beautiful part of hand poured candles.