Just to warn everyone that Cookology is a very dangerous and major lack of safety brand if you are using. Myself or my family could have hurt very badly because I have had Cookology 5 burner hob which is very risky and dangerous appliance for you...that hob's glass exploded while we were cooking dinner. That glass shattered and me & family we had a bad shock when hob's glass exploded. The glass should be heat resistant but its not. I have all the photos of exploded hob's glass. I tried to contact the company but Cookology very rudely rejected my complaint. Cookology PLEASE DONT PLAY WITH PEOPLE'S LIVES and you should understand that this is a very serious safety issue and someone could have very bad injury if the glass keep exploding.