Spring Resistance: 3 kg, green, lightweight. The Bali Impander Resistance Trainer Original - Train against resistance. With the Bali Impander Resistance Trainer Original, you can intensively train your heart, circulation, and breathing. At the same time, your arms and shoulders are strengthened. This device is not comparable to muscle strength machines that primarily serve muscle building. Bali Impanders have a low resistance that corresponds to the resistance of water while swimming. This fitness training aims to normalize muscle tone. Product details: Handles made of sweat-resistant plastic, available in various colors and spring resistance, particularly stable, delivery without loops.