Convenient and practical, the Rota knife sharp ener is a proposal from the catalogue of the English manufacturer - Joseph Joseph brand. This accessory is characterised by its compact design (when folded it is only 12 cm long), interesting construction (when unfolded, the sharpener cover becomes an ergonomic handle for greater comfort of use and two ceramic wheels for sharpening knives with different levels of wear. The non-slip feet provide stability during sharpening. The sharpener is not suitable for ceramic and serrated knives.