This latest member of KingsBox Mad Series was designed for those who take glute training seriously. This plate-loaded kickback machine was created with one clear goal: to isolate, strengthen, and build powerful glutes as efficiently and comfortably as possible.
You may already be familiar with kickback machines, but this is KingsBox’s interpretation. Purpose-built, biomechanically refined, and unmistakably bold, The Divine Duchess takes glute training to the next level.
So, what makes her truly different? Let’s take a closer look.
KingsBox Kickback Machine Benefits
From the very beginning, our goal with this machine was simple: target the glutes as directly and effectively as possible. Every design decision was made with that purpose in mind.
To achieve this, we carefully engineered a pendulum-based movement path that significantly reduces knee flexion and extension. By limiting unnecessary joint movement and keeping the action focused almost entirely at the hip joint, the exercise stays exactly where it should: in the glutes.
This controlled movement pattern ensures the glute muscles do the majority of the work, while the knees and surrounding joints remain protected from unwanted stress. The result is a smooth, natural-feeling motion that promotes better technique, safer execution, even under heavier loads.
In practice, that means stronger glute activation, reduced joint strain, and more effective repetitions. Less compensation. More focus. Better results, rep after rep.
Muscle strength varies throughout a movement; it isn’t a constant, linear output. That’s why the resistance curve of The Divine Duchess was carefully engineered to follow the natural strength profile of the glutes throughout the entire movement.
At the start of each repetition, when the glutes are in a stretched position and capable of producing the most force, the resistance is intentionally heavier. As the movement progresses and the muscles begin to fatigue, the load gradually decreases, allowing you to maintain proper form and control all the way to the end of the rep.
This intelligent resistance profile creates a consistent challenge across the full range of motion, eliminating dead zones and reducing unnecessary strain. The result is a smooth, natural-feeling movement that keeps the glutes working exactly as they should.
Control is everything when it comes to effective glute training. That’s why The Divine Duchess was designed around a kneeling start position, setting it apart from traditional standing kickback machines and providing a noticeably higher level of stability from the very first rep.
Generously sized knee, quad, and chest pads work together with ergonomic hand grips to secure the body in a strong, comfortable position. This locked-in setup minimizes unwanted movement and eliminates the need for balance or compensation, allowing users to focus entirely on what matters most: driving the load with their glutes.
To ensure a perfect fit for every athlete, the adjustable foot support allows precise positioning across different body sizes and training styles. The result is a machine that feels stable, supportive, and confidence-inspiring, enabling safer execution, better technique, and more efficient training rep after rep.
Every detail of The Divine Duchess was designed with real gym environments in mind, and especially busy training floors where efficiency matters. That’s why the integrated bumper plate storage is positioned directly next to the loading horn, allowing for fast, effortless plate changes between sets and users.
This smart layout keeps everything within arm’s reach, reducing downtime and maintaining momentum during training sessions. At the same time, it helps keep the workout area clean, organized, and professional-looking, which is something both athletes and gym owners appreciate.
It’s a small design detail, but one that makes a noticeable difference in daily gym operations, especially when multiple users are training at the same time.
The Divine Duchess is designed to feel right at home in a wide range of training environments: from boutique studios to full-scale commercial gyms and high-performance training centres. Wherever focused muscle development is a priority, this machine integrates seamlessly into the space, both functionally and visually.
It’s an ideal addition for gyms that place a strong emphasis on glute training, lower-body isolation, and high-quality equipment design. Whether the goal is to offer targeted accessory work, elevate the training experience for demanding athletes, or stand out with a refined equipment lineup, The Divine Duchess delivers performance and presence in equal measure.
Versatile, efficient, and unmistakably premium, it’s a machine built to add value across different training concepts and facility sizes.
The Divine Duchess isn’t just built for performance; she’s designed to be noticed. From the very first sketches, our engineers knew this machine deserved a bold visual identity that would set her apart from the rest of the Mad Series.
Striking pink accents give The Divine Duchess a presence that’s both fierce and elegant, creating a strong visual statement on the gym floor. It’s a look that reflects the confidence, power, and determination of the athletes who choose to train on her: unapologetically strong and impossible to overlook.
And while this signature design makes a statement on its own, customization is always an option. From custom frame finishes to personalized pad colours, The Divine Duchess can be tailored to perfectly match your gym’s branding and interior design.