I had to buy locks for the cabinets when I started to babysit my nephew. He gets into everything and I was worried about him going into the cabinets that had harmful chemicals. I bought these because the latch cabinet locks are a hassle for adults to open. These locks work wonderfully I have not had to worry about him getting into my cabinets since I installed them. With the Tot Lok Magnetic Cabinet Lock Deluxe Starter Kit you do need to have a few tools on hand. It requires permanently attaching the backside of the lock to your cabinet doors which can be a pain, but outside of that these are simple to use. All I have to do is take the magnet that comes with it and put it against the door to open it. The best thing about these locks is that it allows the cabinet doors to stay completely shut. I think it is really neat how the magnet that comes with it is strong enough to reach the magnet installed on the inside of the door making opening the cabinet door very easy. The magnet also conveniently sticks to the fridge. This is a nice feature because I can place it high enough on the fridge that my nephew cannot reach it, but it is still in easy reach for adults to grab it and use it. Effectiveness It works better than I had expected it to work. The door stays shut without the gap in it that other cabinet locks tend to have and it is truly childproof! Ease of Use This product is very easy to use all you have to do is stick your magnet to the door and it will open the cabinet for you. Safety I can rest assured that my nephew is safe from harmful products with this tot lok. It is simple to use for adults and so long as I make sure to put it up high on the fridge where my nephew cannot reach it, he cannot open the door no matter how hard he tugs at it. Durability This product has stood up to curious little fingers.