With this Tunturi RC20 Rotational Core Trainer, you can easily create a very effective training tool. Ideal for training the core and other muscle groups. This accessory is designed as an additional attachment specifically for the Tunturi RC20 Crossfit Base Rack. Connect it and then secure a barbell in the slot, add the weights you want, and start your workout. You can do, for example, deep squats, weightlifting exercises, presses, rowing exercises, and pull-ups.