STRETCHMAX - Leg Stretching for Ballet, Dance & Gymnastics Training Superior design with a soft & very secure door attachment, eliminating damage to your door from metal parts. Uses a large welded chrome D-Ring for a smooth sliding motion. Made of soft, yet durable and super strong webbing. Less than 5 ounces. Genuine STRETCHMAX products are made by in the USA by Superior Stretch and Fulfilled by Amazon. Make sure what you receive, matches the photos on the left of this listing page. Instructional Videos are available from Superior Stretch.