Young Bi-Lateral Boy walks with new prostheses. Socket suspension with X-5 seal in liners, Ossur Total Knee 2000 and the feet are Evo Vari-Flex Flex Feet. Prosthetics in Motion is located in the Heart of New York City and is dedicated to providing above knee "AK" and below knee "BK" amputees with the best in prosthetic legs, prosthetic arms, finger prosthesis, leg prosthetics, prosthetic feet and prosthetic hands. Our staff specializes in C-legs, i-Limb, Flex foot, Dynamic Arm, Otto Bock, Ossur and custom prosthetics.