Product review (5 stars): Easy to use and sturdy.
I just love these cupboard bars.  Even though they are spring loaded, they unscrew to the right length without pulling and yanking as other cupboard bars.  Worked wonderful for me when I decided to jury-rig a closet in my RV to make it a useful pantry.  They also worked great in keeping the contents of the medicine chest where they belong when you stop moving and open the door.  What a pleasure to use these.