The stylish cast-iron grates of the Defy Slimline Gas Hob Side Control sit atop a stunning silver backing, adding a touch of class to any kitchen interior. All Defy products are built to last, which means quality craftsmanship, high-end materials, and cutting-edge innovation. This can be seen in the 60cm hob’s flame failure safety device whereby the flow of gas to the burner is immediately halted if the flame is extinguished for whatever reason.