Good deal on MWF refills at Royal Shave. $12.95
Wow...are these guys having some type of sale? They have some of the cheapest prices I've seen, and the shipping is cheaper than most Canadian vendors.​Traditional Shaving has them for half that price: http://www.traditionalshaving.com/products/Mitchells-Shaving-Soap-Refill.html
Traditional Shaving has them for half that price: http://www.traditionalshaving.com/products/Mitchells-Shaving-Soap-Refill.html