This is the Leeze Boom Board Pro: an indoor cycling trainer comes with a two-point tension system and works with various smart trainers and bikes on the market. It has a 100% recycled polypropylene construction with fiberglass reinforcement.
This rocker plate comes with adjustable compression springs and noise isolation. It helps you activate more muscles to get a more effective workout. It works with Saris H3, Zwift Hub, Jet Black Volt, and other smart trainers.