The rebounder provides an enjoyable workout that uses gentle gravitational acceleration and deceleration to promote strength, balance and agility. This Needak rebounder has a hardy metal structure, innovative spring design and resilient permatron mat which is built to last. Non-folding and folding versions (folds in half) are available in two colors: blue or black. The stabilizing rebounder bar can be added for extra support during rebounding exercise. The stabilizing rebounder bar can be added for extra-support during rebounding exercise.