Dcobranchi--Those look like they would fit-- I was up for buying a 20 blade cartridge but had trouble ordering, got annoyed and moved on-- decided to save site for when I had more patience. If this is your first time using an injector, I would recommend just going with the tried and true Schick-- if you don't get the free shipping at Amazon, you pay an extra two bucks so it costs you $7. (Looks like you found a great deal, mftoms. That's a lot a blades - I would be willing to split an order with you-- pm me if you are interested.)