Firstly, the side panels are precisely tailored, and fit therefore 100% in the 3m distance between the Pavillon bars. There are on each side 3 Velcro fastenings and on the upper side even 5. I actually counted ;-)
The only thing that have also objected to the lack of previous speakers ends at the bottom, which I've missed in other parts also often. With some craftsmanship can be sent here easily sew loops. So I have provided for additional support.
Secondly, I also have to admit that's attached with a very thin seam of the tarpaulin the Velcro fasteners. Since, however, at a cost of about 5 / item can not expect a top quality, I see over it and fasten them if necessary even by hand with a thicker thread (I have so far not yet have to make because everything was kept. That's a plan for next season).
Field Test: These sidewalls have with me so far withstood continuous operation on 3 festivals. That is, they were about 12 days in use, under severe weather conditions for pavilions: heavy rain, gale-force winds and hail (Anyone who has been at a festival, like most white pavilions look after).
CONCLUSION: One must know what one buys these side panels. Who here wants to get away cheap and can live with the shortcomings mentioned above, buying a solid product. Anyone, however, wants to buy a product that will last for years, and has a very good workmanship, should rather resort to the more expensive branded products. I give the sidewalls 4 stars because I am convinced of the price / performance ratio, but would evaluate the ease of processing with defects.