Resistance Bands & Expanders from manufacturer MADMAX are practical exercise accessories, which can be used at home or at the gym. There are various exercises you can try with resistance bands which would add extra load to your workout. Resistance bands are extremely durable bands that offer progressive workout with a load, helping you to build muscles, increase strength and improve balance. Fitness expanders are made up of multiple rubber ropes in different loads that can be removed to adjust exercise resistance. They serve to strengthen chest and abdominal muscles, arms and legs.