Unimpressed
I was not impressed with neither the quality nor the effectiveness of these inserts.  They are standard pieces of gel, nothing special or particularly supportive.  There are four pieces that come in the bag, two pieces for each foot (one for the ball of the foot and one for the heel).  As soon as you put them in your shoe one of two things happen:  they either slide around, even if you have some two-sided tape or they flatten completely under normal body weight.  Both options are unacceptable.  I would pass on these if you have serious foot problems.  For a young adult simply looking to add support to well-worn shoes it will be okay, but if you are looking for quality support, spend quality money on a good product.
Rating: 3 stars