What equipment at the gym is best for abs?

What equipment at the gym is best for abs?

What equipment at the gym is best for abs?
Ellipticals, captain’s chairs, rowers, and cable systems are among the best gym machines for your abs.They also help you reduce the amount of fat that sits between your muscles and skin to uncover your six-pack.

Stationary Bikes. Does the stationary bike work your abs directly?
Ellipticals.
Treadmills.
Rowing Machines.