[Durable and Quality Pull-up Bands]: LEEKEY Resistance bands are made of natural rubber material, which is strong wear resistance and can withstand extreme tensile force. You can train without any worries of tear or wear [5 Resistance Bands Levels]: Pull up assist bands come in 5 resistance levels, and each color is different resistance. Green Band (8 - 15 lbs); Green Band (15 - 35 lbs); Green Band (25 - 65 lbs); Green Band (35 - 85 lbs); Green (50-125lbs) [5 Resistance Bands Levels]: Pull up assist bands come in 5 resistance levels, and each color is different resistance. Green Band (8 - 15 lbs); Blue Band (15 - 35 lbs); Orange Band (25 - 65 lbs); Red Band (35 - 85 lbs); Purple (50-125lbs) [Multi-Functional Resistance Bands]: These workout bands can used for multiple exercises, such as strength training, assisted pull-ups, basketball tension training, warm-ups etc [Your Personal Home Fitness Training]: You may add to your home gym. It will help assist in YOU pull-ups at home o