The GuardMaster IV 420 Extra Tall Steel Baby and Pet Gate with Alarm gives you all the confidence you need to safely secure your family. Safety gates are vital for parents of little ones, pet owners, and even people who are caring for special needs individuals. The GMI GuardMaster IV features a strong pressure mount that keeps it firmly in place, but you do have the option of permanently mounting the safety gate for added security. If you want to use this baby gate at the top of the stairs then using the mounting kit is vital. At 42 this is the tallest safety gate in the industry, which can be very helpful if youve got an adult to care for or a toddler that is an escape artist. The alarm sounds when the baby or pet gate is open, so you always remember to close it. This safety gate is JPMA certified and does require some assembly. 1 year manufacturer warranty.