The Mediterrani Royal Outdoor Pizza Oven is of very good quality - it is a traditional clay oven but has very special insulation. The clay oven is hand-made using high-quality refractory clay - made into a traditional shape dome that has been used for many years through generations of oven makers. The clay oven is then layered with insulation and refractory mortar to give the insulation and thermal mass required to achieve high-temperature cooking and have the ability to retain the heat too for slow cooking. The special coating on the outside finishes the thermal properties - in fact, the oven is so efficient you can touch the outside of the oven whilst at full temperature without burning yourself - this is not an advised test though. Whilst outdoor pizza ovens need to be functional and perform to a standard - they also need to add some style to your garden.