Installed a stove today, the customer has two adorable kids, both under the age of five. I made a concerted effort to make absolutely sure the no-tip bracket was in place and worked. It was a pain in the butt, a hotpoint..kinda like threading a needle without being able to see it if the cabinets aren't square, even the customer commented "It's no wonder there wasn't one on my last stove". There are two main types, the ones the grab the foot of the stove as it slides in, the ones that catch a small metal nub so the stove won't tip (I don't like these). If you have children, make sure your stove has one, if a kid were to open the stove and sit on the door...well you get the picture.