The product does contain 100 pieces, although it was packed so badly a few of the cutting disks were damaged.
The majority of the parts provided are spare basic cutting disks (36), sanding disks (far too many) and polishing (heads 15-20).
There are about 10 actual attachments, if you ever bought a dremel you will already have these attachments.
I lost a couple, so it was kind of useful.
Due to the poor previous reviews I already checked what was provided on the dremel website, so I was not mislead by the poor description given by the seller. I was however surprised by the quality of the parts made by dremel, allot of the parts were lower quality then the ones that came with my woolworths knockoff dremel. I wont be buying genuine parts again when you can get a knockoff dremel 200 pieces a stand and a flight case for the same price/quality.
p.s The set seems to be missing the attachment for the polishing heads.