Large Conch Silicone Mold Unique Conch Shaped Tray Resin Concrete Mold 3D Candle The product is a large conch silicone mold, featuring a unique conch-shaped design. This resin concrete mold is ideal for creating 3D candles or other decorative items. The mold is made of semi transparent silicone.. With a sleek and distinct shape, this mold is perfect for crafting enthusiasts looking to add a special touch to their projects.