This strange looking contraption is a kinetic resistance exercise device. It’s called the Four Minute Core Trainer and it has been designed to work 46 core muscles and eight arm muscles in just four minutes.
There is a resistance cartridge in the upper and lower section of the device that provides 60 and 70 pounds of resistance each. If that is too much or too little, additional cartridges can be purchased from the manufacturer.
The lightweight exercise device can be used while sitting, laying flat, or standing and folds for easy storage.
A smartphone holder is built into the trainer which can be used with an app to view the status of your workouts in real time.
If you’re ready to use this device to do some heavy duty crunches and strengthen your core, it’s going to cost you $299.95. You can read more about it and order at Hammacher Schlemmer.