However high could not really convince me the product.
They are processed cheaply, the spiral binding tends to burrow when turning into the foam rubber cap and / or to disengage from the Binungslöchern.
The foam rubber covers are tailored teiweise inaccurate.
On top of that has dominated in the foam rubber cap during shipment or storage at three of the six booklets, the spiral binding of the other book. Not nice!
Overall, the product meets high a consolation prize in the drawing lots at the fair.
Cheap China goods halt that can probably be significantly better even tinker ...
Tend not to be recommended!