STRENGTHEN YOUR ABDOMINAL MUSCLES WITH THE VERTICAL KNEES UP/DIP FROM THE FORCE LINE, DEVELOPED BY SPECIALISTS TO GIVE A MORE FORCEFUL MOVEMENT TO AMPLIFY THE RESULT, WITH THE HIGH- DENSITY FOAM, IN ADDITION TO HELPING MAKE YOUR EQUIPMENT MORE DURABLE, IT IS ALSO ESSENTIAL FOR MAINTAIN ERGONOMICS WHILE BEING ABLE TO SUPPORT A CONSTANT FLOW OF USERS. ESSENTIAL FOR ANY FITNESS SPACE.