A couple years ago (2019-2020) I tried searching for a stainless steel option for my 2013 R41 that I've used daily since about 2014. I gave up my search due to a certain plague that popped up and caused an abrupt change in cash flow so I forgot about it. Fast forward to a couple of days ago, new puppy got on the bathroom counter and stole my ShaverJoe brush that I bought when I first got into this and my other half thought I was going to lose it (was not happy) but the damage was just to the badger hair (finest) so I went in search of a replacement knots and found one on maggards website and due to the algorithm the SS R41 popped up. I am over the moon with both products 100/10