The ball's outer skin is made of thick

offers a strong and stable surface

at the gym or in the park

That's why we use only high-density EVA foam and a durable nylon cover to ensure your neck cushion is long-lasting and robust

This is reflected not least in the bronze bearing of the weight holder

Concept 2 Ski Erg 20 kg The ball's outer skin isOf the Concept2 SkiErg enables a combined strength building and endurance training. In addition to an excellent upper body workout, the SkiErg also trains the stomach back muscles and legs with every pull. The SkiErg is suitable for both the double pole and the diagonal technique. The Concept2 SkiErg is based on the same mechanics and electronics as the Concept2 Indoor Rower, the number one choice of rowers worldwide since 1982. Not only does the