Here at Pizza Direct we stock a large range of magnetic knife holders here is a few examples of what we sell; colour coded knifes, knife sharpening stone etc. All of our magnetic knife holders come with a 1 year warranty for parts. Our colour coded knives are very good quality and they are very sharp they have also been put through rigorous testing to ensure that they sharp enough and not blunt and also to make sure that their are no design flaws. Even the knife sharpener has had rigorous testing to make sure that it passes the high quality standards. If you want to see a demonstration on either the knife sharpener or the knifes themselves then please contact us on 01204 382 800 and one of our team will be happy to assist you. You can either come down to our showroom in Bolton or we can send you a YouTube tutorial.