Wahl blades are made using the highest standard machinery. Every blade is precision ground to ensure sharpness and durability improving the quality of your cutting experience. Snaps on and off for easy cleaning. Cutting length: 0.4mm. Blade width: 32mm. Compatible with the following Wahl models: Super Trimmer (WM8591-830) Chromini (WM8591) Bella (WM8590) Bravmini (WM6590-800). Wahl part number: 1590-7505