[Realizing a firm massage back roller] Combined with other X-Series components, the TRNR Strength Bar X is the ultimate workout system for full-body strengthening, muscle gain, and fat burning. Designed to allow you to exercise on a traditional gym machine at home or on the go, it combines an optimized grip with a durable design. It can accommodate up to 3 Strength Tubes X, allowing for a combination of loads tailored to your individual needs and the exercise of your choice. The detachable mid-line design makes it ideal for on-the-go training and storage. Note: Other TRNR X-Series components for completing the resistance gym (Strength Tubes X, Strength Handles X, Ankle Straps X, Door Anchor X, Outdoor Anchor X) are sold separately.