Braun Silk-pil 7 7-561 Wet and Dry Cordless Epilator Most efficient on short hairs. Our most gentle on skin. External Study at IPI Institute, Stuttgart, March 2013 Designed for use in the bath or shower for a gentler and more comfortable experience. 40 Close-Grip tweezers removes efficiently hairs as fine as a grain of sand (0.5 mm) for long-lasting smoothness.