The Shock Series brings Bolt's commitment to forging champions into the commercial gym market.  The first thing you will notice about Bolt's Shock Series machines is the design. The weight stack is housed in a trapezoidal case made of laser-etched steel and polycarbonate glass. This aesthetic choice creates a distinct outline that is especially striking when placed in a straight line with other Shock Series machines. The Shock Series Chest-Shoulder Combo features a multi-position seat and backrest with 9 positions.  These positions range from 180 degrees to 85 degrees. The armature itself features 5 levels of adjustment so that users moving back and forth between chest press and shoulder press will always find the handles perfectly placed. Even though the weight rack goes up to 309 and will be a challenge, adjusting the platform won’t be. The stylish octagonal backrest moves in between angles with the simple pull of a pin, and the heavy-duty steel tubing aensures that the seat slides easily into its desired location. The Shock Series Chest-Shoulder Combo exhibits industry-leading adhesion, ease of use, and durability. It’s got everything you’d want from a chest-press/shoulder press machine, even a cup holder. Assembly Video