so I cant speak on arch support. Also if you need to remove the case the adhesion is really good. Not as described This is all you have to do:USB cable doesn?t need to be used for this to work. Four hooks are attached to the pegs, which we used for installation on a cupboard side by a coffee nook. Es gibt in jeder Kategorie deutlich bessere KH und meistens für die Hälfte des Preises! The velcro on these shoes does not stick and my daughter hates wearing them! Because of this when I wear it the bottom of the strap doesn?t actually touch my head at all and just sort of floats there. I am super happy and will wear these on my wedding day! The racks link together with supplied parts but assembly is tedious and the quality isnt ideal; however I see the complete product as a good value.