Use the Original Xertube to isolate targeted muscle groups through a full range of motion to strengthen and tone your arms, chest, shoulders, and back. This versatile and very convenient tool is perfect for group exercise, personal training, and even travel. The progressive resistance levels also make this tool ideal for individuals of all fitness levels. Heavy-duty, high-quality tubing resists tears and abrasions. Available in color-coded resistances ranging from light to heavy. Sold individually. Also includes a downloadable exercise guide. Take the Original Xertube with you wherever you go for a great full body workout.