Pioneer S L5V

[badrisuper]

Hi,
I bought a pair of pioneer bookshelf speaker for 1k. It really sounds good. It shines in sweet mid bass. But it looks like need to do some work. Speaker's edges are looking weak. There are very tiny holes in one speaker. I never modified or touched a speaker before. I like to change those foams. Please advice me where to get those foams and other necessary things needed.

Thanks
Badri