I would question what ordinary user would need more, and the Prime delivery made it an easy choice. 5 would be perfect. But overall we loved them! I enjoyed listening to these more than the other headphones. It is a cheap quality product, it is usable, but there is better value for money in the market. I have a set of BFCO plates ranging from 5-45 (2 Each) & a set of VTX plates 2. There is not much to a product like this. not to mention the extenders on either end, which could easily hold an additional 25 per side, it all depends on the type of garment youre hanging & how bulky that garment is. I just received my waist trainer and this is my first day wearing so I may come back at the end of the day to rewrite this review dependent on how it goes. I was worried that this set would see the return of the headache inducing MSR7 clamp, something that was so severe (to me), that I ended up returning them.