You can choose between two different stone types for your new holds / rails / hangboards. They either come in gray Finnish Granite or in the rose-colored Italian Sandstone. The granite has a naturally rough surface, which is easy to grip and will prepare your hands for outdoor bouldering in Southern Switzerland or Yosemite National Parc. The sandstone is a bit more smooth and great for training on less grippy surfaces like in Fontainebleau and the Red Rock Canyon.