Found a stash of them for sale at Gander Mountain last weekend when I stopped on the way to camp. They are expensive, but I've got about 2 dozen of the heads with 6-7 of them needing new blades. Each pack comes with 3 new tips, 6 new blades, and 6 new o-rings. They are selling them for $19.99. I bought up 6 packs of them before we start to see our annual Rage low stock crisis.