Sharpening the chain I've carried out according to the enclosed instructions (without previous experience). The reason was that the 1.1mm Hobby chain is very blunt quickly. Sharpening is relatively foolproof. In fact, the chain has after DM first attempt again well laid out. Meanwhile, I have already 2 times reversed. Thus, the sentence has already been paid, because a new chain is to be set at about 10EUR. The Round file diameter I find almost too low for 1,1er chain, but have to admit that I have little idea how exactly the tooth should look for sharpening ... The packaging looks solid. The Velcro is sewn clean and just the right length. Nor can it be made any statement about the durability of the file. Especially in the flat file that is always drawn on straightedge.
