In this video fitness model and personal trainer David Rich takes his dumbbells and teaches you an exercise that works your hamstrings, quads, and back muscles.You find David Rich's Underwear here:
www.RichUnderwear.com
www.UnderwearDVD.com
In this video fitness model and personal trainer David Rich takes his dumbbells and teaches you an exercise that works your hamstrings, quads, and back muscles.