Blue Heavy 15 Loop (lower Body) High Quality Latex Band Pre-formed Into A Loop You Do Not Have To Cut And Tie It Use The Pre-made Exercise Loop To Perform Almost Any Upper Or Lower Body Exercise Highly Portable Band Can Be Taken Anywhere There Are 7 Progressive Levels Of Resistance To Accommodate The Lightest To The Strongest Needs Full Body Set Consists Of 10 15 And 30 Loop Of Specified Color Can Be Used For Total Body Workout Lengths Represent Loop When It Is Flat A 10 Loop Is Equivalent To 20 Of Flat Band Cut And Tied In A Knot Loops Are 3 Inches Wide