This is a Nerf Firevision Football which has retroreflective surfaces. This is a short video of the retroreflective surface magnified 200x. I used an EyeClops.
You can purchase the Nerf Firevision here: https://amzn.to/1bKMNNZ
You can purchase the EyeClops here: https://amzn.to/1aAOIoP