The authentic genuine Philips OneBlade blades Fits with OneBlade products (QP14xx, QP25xx, QP26xx, QP27xx, QP28xx) and OneBlade Pro (QP65xx, QP66xx) Anti Friction Blade: it’s smooth, like really smooth; a layer of micro glass beads dials down friction while you shave, and because that helps reduce razor burn, you don’t need foam or water Durable stainless-steel blade that lasts up to 4 months¹ of use to keep that fresh feel With replacement indicator: when the eject icon appears on the blade, the blade performance may no longer be optimal; it's time to consider changing the blade for the best shaving experience The set includes: an 8-month¹ blade supply (2x Anti Friction Blade)