Great for kids and adults to increase their hand and grip strength but constantly pulling on these stretch noodles as well as anger release and vent emotions. Kick stress by pulling, stretching, squeezing, and twisting these noodle toys. Really help to release one's stress or nervous, keeps them calm! Use these for kids who have sensory issues and fidget to avoid hair pulling, skin picking, and nail biting. These are made of Thermoplastic rubber (TPR) that has high fatigue resistance as well as resistant to tears and abrasions and weather yet these are still soft and easy to stretch. These are the perfect gift for children and even adults on their birthday, as a Christmas stocking stuffer, Easter basket filler, and other holidays.