I did LOVE the service from Amazon since I forget to get it at the local store. It took less than two minutes to secure this to the roof of the car. Before the resistance bands my pull ups were not uniform now i can lift myself completely up. not so well. Only 1 pair of comply tipsBang and Olufsen are a renowned Danish Consumer Electronics company who, like all truly premium brands are careful who they let sell their products. Works for two or three days 4h of use each day. these fit so well. I usually wear them until the sole wears down and then have them resoled once more before retiring them. Never has this brand given me pain, but boy these shoes gave me blisters after only 1 day. The looking is not so good now but still no damaged part.