- [Man] Get strong, get ripped, with the Stamina X Fortress Power Tower, the Fortress is Stamina's most versatile power tower ever. Designed for an intense, total body workout. The Stamina X Fortress Power Tower has multiple workout stations, to work every muscle in your body, the Fortress, features four pull up stations, to blast your back and arms, padded wide grip and neutral grip stations for standard pull ups and chin ups. Take your pull up and grip strength to the next level, with the boulder fit rock climbing hand holds, challenge your grip even more, with the stamina stronghold grips, adjustable dip bars for tricep dips, pushups, and rows to target your arms and chest, and vertical knee raises for a ripped mid section. The Fortress is the only Power Tower with a built in, adjustable plyo box, that adjusts for five different heights to change up your exercises or intensity. Build speed and power, with box jumps, step ups, single leg squats, and more. The Fortress will leave you breathing hard, sweating hard, and worked from head to toe. All this, is packed into a small footprint, to fit easily into your home gym. The Stamina X Fortress Power Tower, build your Fortress.