convenience stores stock everyday items such as toiletries, but on occasion, customers may come across unexpected items of which onlyone or two brands are displayed.해석이 좀 매끄럽지 않게 되네요...

1. of which 가 everyday items 을 뜻하는건가요?

2. onlyone or two brands are displayed 가 unexpected items 을 꾸며주고 있는건가요 ?

즐거운 금요일 되시구요 ^^

감사합니다. (__)