Top positive review
on 13 July 2014
This is what it is, really. It is only meant for tuning the edges of the board, not taking out nicks etc.
The instructions are simple, depending on the angle you want to put on your edges, you put the file piece in the corresponding slot and slide it along the edge in the direction indicated.
I put used it on my Skate Banana, which has the Magnetraction wavey edge thing, seems to do as well, though I cannot get it as sharp as when I first received the product (and before the service at St Anton blunted them all off for me :( )
The only other thing is that this is actually 87deg / 88deg, not 88/89 as described.