Dual Core BlasterDual Core Blaster The Duel Core Blaster is an extremely versatile piece of equipment, which is perfect for rotational core work, as well as rows. The universal joint allows for complete freedom of bar movement. All you need is a bar and you're ready for a core workout like you've never experienced. The Dual version allows for more than one athlete to train at the same time. It also allows for many two armed movements such as * Rows * Leverage Side