Wilkinson Sword Hydro Silk Bikni Razor and 6 Blade Refills. The Wilkinson Sword Hydro Silk Bikini razor features five Curve Sensing blades to provide incredible closeness while reducing skin irritation. With just a flip of the handle, razor transforms into a waterproof bikini trimmer, which can be used in and out of the shower for convenient bikini maintenance. Moisturising Serum: The water-activated hypo-allergenic moisturising serum is dermatologist-tested and helps replenish your skin’s natural moisture for up to two hours after shaving. Five Curve Sensing Blades: Designed exclusively for the curves and contours of a woman’s body, five Curve Sensing blades provide incredible closeness while unique Skin Guards on each blade help protect against irritation. Adjustable Comb: With four adjustable comb settings, the bikini trimmer allows for convenient bikini maintenance for a customised trim length and desired look and feel.