if you are referring to the leather strop wheel on the Tormek then I will say that I have found that I needed to add more mineral oil than was provided. It is winter here in Indiana and I heat with wood so I think the air is so dry that my leather has dried out and the oil has really helped keep it moist. I find it beneficial to add just a bit of oil everyday I use it (Just a few drops here and there). I also add polishing compound when honing. I know this goes against what most users are doing but I have no doubt this has been helpful for me in my environment. My leather is nice and supple.