The Small 66fit Flexi-Feet Wedge Heel Cushions (Pair) are made from a medical silicone that has a dual density gel with a soft blue spur spot that provides extra cushioning.FeaturesMaterial: SiliconSmall:?UK Size 2.5 - 3Washable and Non-ToxicWill not flatten.DescriptionDesigned for both Mens and Women Shoes, can be used for reducing discomfort, pain and other negative effects by absorbing impact at heel strike.Ideal for Calcaneal heel spurs, bursitis, Achilles, plantar fasciitis and sports injuries, suitable of both normal and sports shoes. Great for prolonged standing and walking.