For an unbeatably close*, smooth feeling. Works with foam. *Tested against leading competitive products in the same class.Get back 100% of your shaver's performance with Braun High Performance Part 51BBraun WaterFlex shavers offer amazing skin comfort and an excellent close shave even in problem areas with its contour-adaptive swivel head. They combine highest ergonomic Braun design with non-slip grip with highest German Braun quality standards. They are specifically designed for usage in the shower and/or with foam to provide an outstanding and comfortable skin feeling during the shave and to prevent skin irritation. Braun –Designed to make a difference.