Features: Experience targeted relief with Magnetic Foot Support Insoles, features 500 Gauss magnets and comfortable support for stable alignment and reduced foot fatigue. Crafted from breathable TPE with embedded magnets, these more ventilated insoles offer double the durability of standard foam shoe pad while maintaining all day freshness. Suitable for flat footed individual, and professional requiring extended standing support like teachers and retail workers. Perfectly adapts to sports shoe, leather shoe, trainers, canvas shoe, sneakers and boot for daily commutes, gym workout, running, or prolonged work shifts. Clinically tested to reduce foot pressure, these magnetic shoe pad deliver precisely foot reinforcement without bulkiness in size 35 40. Specifications: Color: Black Component: Magnet; TPE Small Size: Approx. 15.70cm/6.18in Large Size: Approx. 17cm/6.69in Weight: Approx. 84g; 95g Package Includes: 1Pair Magnetic Half Shoe Pad note: 1.Please allow 0-1cm error due to manual measurement. Be sure you donot mind before bid. 2.Due to difference between different monitors, the picture may not reflect the actual color