This is a listing for reinforced rubber tubes (resistance bands) for the Squat Magic. (Important Notes) You will only receive two rubber tubes. When replacing the rubber bands (rubber tubes) of the Squat Magic, you absolutely need the four plugs and four white ball bearings that are attached to the weakened or broken rubber bands. These cannot be replaced if they are discarded or lost. Please refrain from purchasing if you do not have these. Thank you for your understanding. Please watch the following YouTube video posted by the seller, which has been edited to help buyers understand the replacement process: https://youtu.be/V8SMYjfRAw8 (Public) and carefully follow the instructions for the replacement. The resistance bands (rubber tubes) of the Squat Magic will inevitably wear out over time due to repeated stress. If a band breaks, please consider replacing it with these reinforced resistance rubber tubes.