Prosthetic sach foot, polyurethane foot The sach foot prosthesis is a cushioned heel dummy foot with a flexible keel for level 1 and level 2 activities. Adjustable screws adjust the heel cushion for optimal personal fit. Sach Foot Prosthesis The sach foot prosthesis is a cushioned heel dummy foot with a flexible keel for level 1 and level 2 activities. Adjustable screws adjust the heel cushion for optimal personal fit. Safety - lower stiffness when bearing weight allows patients with mobility issues to be Early laying flat and higher stability Meets the needs of patients with reduced mobility to maintain activity level Lightweight keel Improved ease of use, ideal for elderly or mobility-impaired users Limited strength Durability testing confirms that the foot can last for people with reduced mobility