Specification:Color blueMaterial: made of high quality corundumSize: 5 x 4.7 cm (diameter x length)
Package: 5 x lawn mower knife sharpener, 1 x gloves (pair)
Warm suggestions: 1. Most manufacturers recommend sharpening the blade at least once a season.2. At your daily time, we recommend that you always wait your mower blades and apply oil to prevent your knives from passivating.