"HIGH QUALITYThe elastic bands are specially developed by professionals as equipment for dance, ballet and gymnastics exercises. Take your training to the next level with our resistance bands. With just a few weeks of consistent training, our bands can dramatically improve leg extension and range of motion!Soft Connection, Comfortable to UseWont scratch your door but holds the strap securely. Thanks to the high-quality materials used, no damage can occur: the 150 g cotton strap passes smoothly through the 6 mm solid metal welded D-ring. Door anchors secure the straps with metal bolts through the metal plate.Great Gift IdeaGood stretch is a must for dance, ballet and gymnastics. Give your friends and loved ones the tools they really need to make them happy. Needless to say, your gift is sure to be highly appreciated.Easy MovementA flexibility device that takes just seconds to use: place the door anchor on any sturdy doorpost, close the door, pull the strap through the D-ring and you're ready to take your posture to the next level . Like a portable stretching machine!Excellent DesignWont damage the door and stay in place. This leg extension device won't scratch or damage your door, nor will it move or slide when you stretch your legs."