The silicone makes the pastry release easily from the moulds. The baking moulds can be placed on top of one another to make a two-layer cake. http://www.ikea.com/th/en/images/products/sockerkaka-baking-mould-set-of-__0119441_PE275752_S4.JPGSOCKERKAKA Baking mould, set of 2, light bluehttp://www.ikea.com/th/en/catalog/products/00188295/001.882.95359 THB