100% Natural Latex: KANGFITER pull up assistance bands are made of 100% natural latex, non-toxic, no odor and non-slip. Resistance bands are safe and durable, anti-roll and anti-tear, and can maintain high elasticity even after long-term exercise. You can use it with peace of mind and focus better on your training. WIDER APPLICABILITY: KANGFITER divides professional exercise resistance bands into 3 resistance levels(5-60lbs), 2 resistance levels(60-125lbs) and 5 resistance levels(5-125lbs). Whether you're a beginner or an athlete, you can find the right option to help you improve your strength and reach your training goals. MULTIFUNCTIONAL RESISTANCE BANDS: These exercise bands are ideal for strength training, pull-ups, physical therapy and more.They add resistance and weight to workouts, provide pull-up assistance, making movements more efficient, and are perfect for men and women to tone arms, back, legs, chest, core, abs, and improve body flexibility. PORTABLE AND