Because of the rapid dive, the pressure increases , so the free diver's ear pressure balance rate needs to be faster. Pinching the nose by hand to balance the ear pressure will strain some of the muscles of the body, consume extra oxygen, and is not conducive to the body streamlined. With the nose clip, you don't need to hold your nose with your hands, you can keep your shoulders relaxed, you can easily find your , and practice your ear pressure balance skills. Therefore, the nose clip has become the for free divers. And habitual use of diving nose clips, you can make your nose more slender and straight! This nose clip is based on the size of the Asian nose, combined with human body statistics, to the maximum extent of locking the nostrils, without causing pain, and easy to balance the pressure of the ear. Excellent process treatment, can achieve no decolorization, no fading, seawater corrosion resistance. Weight: about 15 grams Freely adjustable lanyard length Non- silicone pad at both ends of the nose clip Glitchless smoothing process Special sliding locking mechanism colour:Silver Material:Aviation Aluminum 6061 Package Contents: 1 x Diving nose clip (With lanyard) 1 x Storage bag Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.