You may not think these are important, but trust me, they are. My wife and I went out on my brother's pontoon boat 2 yrs ago. Had my littlest grandson with us. He was about two at the time. He told me to bring him along and let's go. Needless to say, that child had a blast. But about midway through the day, he runs back there, grabs the key and is holding it up and looking at Grandaddy. I very calmly said bring it to Grandaddy. He looked at me and smiled, looked toward the water and gave it a fling. I like to fell off my chair. Luckily, my brother had one of those floats that hooks to the key. After that, I saw the important of those little gems.