Resistance Bands: The set includes four resistance bands in different colors, each with a different resistance level: yellow (2.3-7.8 kg), red (7.3-16.9 kg), black (11.3-30.5 kg), and purple (16.9-39.5 kg). You can use a single resistance band or combine several bands to meet different training needs. Highly Elastic Material: Our resistance bands are made of high-quality TPR material, which is soft to the touch, durable, and has excellent elasticity and recovery. They will remain intact and will not deform no matter how long they are used. Multifunctional Exercise Bands: These resistance bands are suitable for full-body strength training. The different sizes and resistance levels of the resistance bands are perfect for beginners, athletes, yoga enthusiasts, or Pilates practitioners to help them strengthen their core and train arm, back, leg, and glute muscles. You can use them for various purposes such as fitness, weight loss, and muscle building. Excellent as a Workout Gift: Easily attach to pull-ups, gym equipment, or other stable objects to quickly transform your surroundings into an effective gym. Additionally, they make excellent gifts for friends, family, and partners, ideal for Halloween, birthdays, or Christmas. Product Specifications: Material: TPR; Size: 208 cm (length); Package Contents: 4 elastic resistance bands. Please note: 1. Due to differences in lighting and screen settings, the product color may vary slightly from the image. 2. Please allow slight errors in size due to manual measurement.