Glass is approcimately 3 inches tall. Made with real sea shells by White River Studios located in the Ozark Mountains where they are inspired by nature. QUESTIONS & ANSWERS ABOUT LIFETIME CANDLES: How long will they last & burn? The candles will continue to look pretty year after year. The highest quality of elements are processed and preserved prior to adding the oil. The fiberglass wick will not need to be replaced. The fiberglass wick will absorb and burn the oil (paraffin) without the wick burning. Each candle varies in design. Naturals are the main focus, although some man-made elements are used. The candle oil is unscented.