Cortex PTX-100 Power TowerThe Cortex PTX 100 Power Tower lets you perform a whole lot of workouts. Namely, chin ups, knee raises, dips, barbell exercises, push ups and step ups. Sturdy 4 Way Power Tower A huge range of exercises with just a single unit. 1. Chin Up Bar 2. Vertical Knee Raise Grip 3. Dip Handles 4. Barbell Height Adjustable J Hooks 5. Folding Flat Exercise Bench 6. Push up handles 7. Step up Platform Heavy Duty Frame Our heavy duty grade steel frame is designed