- The Diruno comfortable gel Cups massages the heel and provides superior shock absorption relief. - Perfect for all ages and both men and women improve step balance and foot strength anti-skidding, shock-absorbing and depressurizing reduce the damage to the foot due to vibration relief pressure and pain from shoes. - Manufactured from high quality Silicon material. - These silicone heel cups are Suitable for leather shoes, sports shoes. - It can be easily washed by hand with a mild detergent when necessary. - Before placing it in your shoe ensure there is adequate space in your footwear to accomm