Finally, there is a hoof conditioner and toughener that is also a show quality cosmetic. That is a tough combination to beat. It’s called Tuff Staff. It is so effective that, after treating an egg with it, you can actually drive a nail through without cracking the shell. To strengthen brittle, shelly, mushy or cracked hoof wallsTo protect scuffed toesTo guard against fungus, caustics and bacteriaTo maintain the hoof wall’s natural moisture level7.5 oz. size