Our cement vessel collection is handmixed and handpoured. For candle making, these candles hold roughly 6 oz of wax in their 8 oz vessels. include corck pads bottom. The inside is sealed with a water-based sealer. Diameter: 3.625" Height: 3" Due to these items being handmade, there may be slight differences in appearance including but not limited to difference in color + small markings. As with all cement products, the cement vessels may also gain small hairline cracks throughout time. Luckily, none of these things impact the quality or performance of the product. We do not accept returns/exchanges, but please reach out if there is an issue with your order.