Sustainability is considered when manufacturing the products. The products are packaged with environmentally friendly and recyclable materials. Each piece is handmade and therefore unique. All products are sanded and sealed. So it's possible that there are a few air bubbles or bumps, I'll do my best! The products are waterproof and fireproof. The material consists of a combination of reactive mineral powder and water-based acrylic resin, making it environmentally friendly. It feels like stone but is lighter and looks very high-quality. It is best to wipe with a damp cloth and do not clean it under running water. The products are not dishwasher-safe. The material could chip or break if dropped. Bracket diameter: 3cm To be safe, put some candle wax in the holder so that the candle does not fall over.