How To: BOB aka the Body Opponent Bag


You were searching for a versatile and realistic training partner for your kickboxing, boxing, Muay Thai, MMA, or cardio workout routine… Century's BOB (Body Opponent Bag) was the obvious answer!


So now what?


In this post, we will cover everything you need to know about the basics of BOB, including how to assemble, fill, and use it, as well as some tips on customization, durability, and cleaning.


So, before we dive in, it is important to know what we are working with. What sets Century's BOB apart from other training bags like the Century Wavemaster or hanging bags? Century's BOB is a lifelike training dummy that mimics the shape and features of a human torso. It provides a more realistic target for your strikes and helps improve your technique and accuracy. BOB comes in different models, including BOB, BOBBY Bully, and BOB XL with a Base. Each model has its own take on these unique features (specifically size) to cater to different training needs. With all of these aspects in mind, let’s move on to the basics.




Assembling Century's BOB is a straightforward process that can be done in just a few minutes. Start by unpacking all the components and laying them out on the floor. The package should include the BOB torso, the base or stand, and any necessary hardware. Depending on the model you have, the assembly process may vary slightly. Follow the provided instructions carefully to ensure proper assembly. Generally, you will need to attach the torso to the base or stand using provided screws or connectors. Use the recommended tools to secure the components firmly.

The BOB torso is ready for use once attached to a filled base—fill with sand* or water. Simply attach the torso, and you're good to go.


*Pro tip: lay down something to catch stray bits of sand or drops of water before filling.


Once you have assembled Century's BOB, it's time to start using it. The BOB torso is designed to withstand powerful strikes, making it an excellent tool for improving your striking skills. You can practice a wide range of techniques, including punches, kicks, knee strikes, and elbow strikes. HIs lifelike shape allows you to target specific areas, such as the head, body, or even simulate a ground-and-pound scenario. This means BOB is in for a world of hurt, so make sure to end workouts with a pat on shoulder and a thank you—a little sportsmanship goes a long way.

Century's BOB is suitable for both indoor and outdoor use—though indoor storage will dramatically prolong BOB’s life. Ensure that you have enough space to move around and that the area around BOB is clear of any obstacles. You can adjust the height of the BOB torso to your preferred level, allowing you to simulate different opponents or work on specific striking zones. Keep in mind that Century's BOB is not meant for groundwork or weapons drills, and using excessive force may cause damage to the torso or result in personal injury.




Durability is a key feature of BOB’s anatomy. The torso is made of high-quality materials, such as durable PVC and foam, so he can withstand rigorous training sessions. However, it's important to regularly inspect the torso for any signs of wear or damage. If you notice any tears or punctures (rare but possible), it's advisable to repair or replace the affected parts to maintain the longevity of your BOB. If you have any questions, never hesitate to call a Century Agent.

Don’t forget: BOB offers customization options to enhance your training experience further. On certain sizes, you can add the BOB jacket (adding arms!) to simulate a more interactive training session.




Cleaning Century's BOB is relatively simple. Use a damp cloth and mild detergent to wipe down the surface of the torso, removing any dirt or sweat—the same applies to the durable vinyl for the BOB Jacket.

Avoid using abrasive cleaners or solvents that may damage the material. Regularly clean and disinfect your BOB to maintain hygiene standards.




That's the basics! You’re ready to unleash your potential and take your training to the next level with Century's BOB! Work hard and fight well.