![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEimczMgHaj-fLYUEfq6W-cnGZeBHaqNoJjvgeT4DkCkxA4WO7nqQ7vexMP81fOIHkptDI4owhgqRJ_k2CCvsPVA-cfwF_usnYqW3OVhaA8YulfDF8E_il4QaEvZfeyhtrSBZL0pOHf3RLwU/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