Floating Laptop tray suspended on a monitor arm - Safety Retainer Clips

My laptop sits on a tray in the air held up by a monitor arm. My laptop almost slid off the tray multiple times. I decided to make retainers that will not allow laptops to slide off the tray. With these clips, the monitor will not close 100% but the laptop lid folds down far enought for the laptop to go to sleep. I've only tested these clips on a macbook pro 13 inch laptop. I've attached these clips to the tray using "Alien Tape" and it has held the clips perfectly for years and still going.