Kit of 3 angle guides for a sharpening rod. Allows you to select and fix the sharpening angle at 30, 35 and 40 degrees. 
All indicated angle sizes are ‘included angles’.

That means that if you sharpen a knife at a 15 degrees from one side, ‘included angle’ is marked as 30 degrees.

Compatible with rounded sharpening rods up to 14mm diameter (Wüsthof, Ioxio or Zwilling rounded ceramic rods). Compatible with full flat V-Edge kitchen knives up 3mm spine. You can find complete video guide at: www.knifeyoulike.com/guide

YouTube vide link: https://www.youtube.com/watch?v=v90Q5tp3TDk