Brook & Brian help Marc check out four big claims; a 3D printing device; laser engrave and mill; a trash can that scans items to create a grocery list; an electronic coating that protects your device from getting wet.

Marc, Brook & Brian scrutinize four claims: the most advanced bicycle handlebar, an emergency inflation device for flat tires, a product to check a wet diaper through clothing and a suit allowing you to safely navigate without the sense of sight.