![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiwptLhMMcwszVGQwVRqOyupIwMVrF7axDAl5wwjDvuNHQrJzkWhcr52naT87aFIvVUcpmvLbU34zCCS0rt9hViRMcl9K9EdFCs8ZBIbyIJaEu2m8Tga3b-DlYcTJ-vrFGfvq3OIHQ0FLpA/s400/4ray.jpg)
In the first video David teaches an exercise that works your hamstrings, your butt, and your back:
In the second video David teaches an exercise that works your legs, your back, and your arms:
You find David Rich's Underwear here:
www.RichUnderwear.com
www.UnderwearDVD.com