The Yoga Pilates Portable Resistance Band Long Training Stretch Bands For Physical Therapy Lower Body Home Strength Elastic Exercise are constructed using TPE material and are free of latex for a soft touch. The fitness bands are highly elastic and resistant to tearing, making them suitable for various individuals' exercise needs. Offering 4 different resistance levels, the 1.8M band set includes: Yellow (0.3mm) 8-10 LBS/3.6-4.5 kg, Red (0.4mm) 15-20 LBS/6.8-9 kg, Blue (0.5mm) 25-30 LBS/11.3-13.6 kg, and Purple (0.55mm) 30-35 LBS/13.6-15.9 kg. The resistance bands offer optimal elasticity for muscle training, with the ability to enhance strength when looped around the hand and promote full-body stretching when formed into a ring. These multifunctional bands cater to a wide range of exercises, from Pilates and yoga to strength training and stretching, making them a valuable tool for physical therapy as well. They can aid in post-operative rehabilitation, muscle strain relief, and joint pain management among others.