Candle cup steel with brass finish sold as a single. Rim diameter 28mm; height 18mm; top cup diameter 23mm; bottom cup diameter 19.5mm screw hole 5mm. These candle cups are made to fit table candles and just need a little molten wax in the bottom to position the candle, use a small screw through the 5mm cup hole to secure the cup in your timber or simply glue in place.