The Ooni Pizza Stone 10mm - Koda 12, Fyra 12 and Volt 12 will cook crispy pizza bases with ease. All Ooni ovens come with a pizza stone, but Ooni's Baking Stones also work great in a domestic oven for anyone looking to level up their homemade pizza game. The high-quality 10mm thick cordierite stone traps and retains heat for fantastic pizza every time the oven is fired up or turned on,