Amazon

Nordic Hamstring Curl Strap

This easy 5 sec portable curl setup lets you strengthen your hamstrings, glutes, core with ease. Foam padding will make it extremely comfortable wherever you are, simply move the adjustable strap to meet your needs. You can now enjoy your workout at home, in the office or on the road by simply slipping the 1.5 inch anchor under the door or wherever you want to customize your workout.