This is meant to hold a leap motion in this chest harness: https://www.amazon.com/AmazonBasics-Chest-Mount-Harness-cameras/dp/B01D3I8A7A

I use it for vtubing. I printed it in PETG for good elasticity.

If you have any questions or want to see it in action catch my livestreams at https://www.twitch.tv/swolekat