Just picked myself up one of these from boots for £6 with 1 blade. Not had a chance to use it yet but will keep you all posted. its from what I can see a double flex handle. You get the standard flipper flex on the blade and there is the pressure sensitive joint further down the handle than bends that can be locked down. I'm sure one of the japanese cart razors had the same thing. @Sabre should know. The details below have been borrowed from the net. Hydro 5 Sense features include: A built-in shockabsorber/ Flipper trimmer/ Cartridge with 7 hydrating gel pools that contain menthol/ And 5 Ultra Glide Blades with Skin Guard. Hydro 5 Sense is built to address irritation head-on with the inclusion of an innovative built-in shock absorber on the razor head that allows for an incredibly close shave, alongside unique refill gel formulas which provide specific shaving benefits that cater to men’s differing needs. How to use Hydro 5 Sense razor auto-adjusts when pressure is applied, flexing as needed and absorbing excess energy that normally exerts onto the skin. When the pressure goes away, the razor returns to its original state. The how to guide: 1.Exfoliate - It will help prepare the skin for your shave 2.Wet your stubble with warm water before shaving to hydrate the hair making it easier to cut. 3. Make sure your blades are sharp. Dull blades are the culprit for most shaving accidents. 4.Shave the most sensitive area of your face first - the neck and below the jawbone - then move up the face, applying gentle pressure and shaving with the grain of the hair. 5.Apply oil / alcohol free moisturiser to soothe, protect andinvigorate your skin. Important info 1. Built-In Shock Absorber Featuring shockabsorption technology, the mechanism inside“senses” when different pressure is exerted onskin during shaving and auto adjusts to providethe optimum amount of pressure. 2. Flip Trimmer - With a simple flick of the thumb, can be used to edge and trim, reaching those hard-to-get-to areas such as under the nose. It’s much easier to use than standard edging blades as there’s no need to turn over the razor to access it.