The dual-handled power tubes feature a comfortable ergonomic grip with flared ends for smooth rotation. The power tubes are available in four different resistance levels and are encased in a protective nylon sleeve. At 4 feet (122 cm) in length they can be used in tight spaces. With four different resistance models, the power tubes are a great tool for users of any fitness level. The power tubes are the perfect tool for full-body group training on Torque X-Lab Systems and with the XRBA wall mounted resistance band anchors.