Material / Specially blended resins. It allows extra strength and bounce-back capability for pushing down from upper end. Light but not too light weight from our walking efficiency study allowing walker to be active with stability. Magnet / 6 permanent magnets on a pair. Tenderly curved mesh design. Ergonomically designed to support plantar arch to prevent from fatigue. Material / Specially blended resins. Allows for extra strength and rebound when pushing down from the top end. Lightweight but not too light allows the walker to be active with stability. Magnet / 6 permanent magnets on a pair. Delicate curved mesh design. Ergonomic design to support the arch of the foot to prevent fatigue.