The Aqua Sphere Ergo-Board is great for low impact conditioning so that you get in shape. It helps you to tone your muscles and burn lots of calories. This board will allow you to focus on your core and lower body for enhanced overall strength. It is Ideal for people of all fitness levels so just about anyone can use it. Both people who would like to do conditioning and those who are in rehabilitation will benefit from it. You can place your hands and arms in various positions in order to be comfortable. Its rounded corners keep you safe from chaffing. It is made of EVA foam in order to be very durable and last for many workouts to come. Non-Water logging material ensures that it does not become damaged by water. The Aqua Sphere Ergo-Board is also chlorine-resistant so that you can take it to the pool without having to worry about the chlorine in it.