Gaiam - Use the Gaiam Strength Tube to strengthen and tone your arms, chest, shoulders, and back. This versatile and very convenient tool is perfect for group exercise, personal training and travel. Includes a handy Door Attachment to provide more exercise options. Medium resistance 4 - 8kgs. Features and Benefits:Best for boosting muscle tone and joint strengthening - Ideal for increased resistance with moderate repetitions - Strength Tube Measures 120cm in Length - Comfort-Grip, high-density foam handles constructed of premium dipped latex for extra durability & tear resistance - Door Attachment Included - Bonus online workout