Once I discovered the brackets wouldn?t attach securely I debated the following options:A. Holds bikes strongly and secure! Didnt align right. If you are weighing up your options (I was and had no clue) you will NOT be disappointed with these. I first tried them listening to my favourite music, "Jacques Loussier Trio" recorded live in 2007 at "Jazzwoche Burghanausen which I have listened to on some very expensive headphones. Il protège parfaitement lenceinte et permet dy ranger en plus le socle de chargement ainsi que les câbles. There are some stray pieces that hang over and almost need to be trimmed off. An excellent product, fully fit ad safe for practical active yachting purpose. Fill base with water and it works just as well as the $100 ones. I would have one at work, at home, and a 10 keyless one for my stream PC would be awesome too.