our custom hanni Swedish stainless steel blades are 100% recyclable and deliver the closest, softest shave out there. the double edge means you can cover more skin in fewer passes. directions: change your blade every 2 weeks to avoid nicks, cuts, and rusting. if you shave everyday, change your blade once a week. when it's time to switch out your blade, just toss the used one in your blade bin. when full, the blade bin and blades can be recycled. directions: please note: only hanni blades work with the hanni razor. the hanni razor was specifically designed for the best body shaving experience, and our custom blades perfectly match our razor. together, they give you the smoothest shave possible.