The CMF OL1000 Bone Growth Stimulator was used for a patient's broken sesamoid bone on the foot. It has expired its uses and requires a reset before it will work again. This product MUST be used under the direction and prescription of a physician. The seller is not liable for any deviation from the product's instructions, physician's instructions, or deviations of use from federal law. Use at your own risk, all sales are final. The product is in near mint condition, and includes all of the paperwork that was included when it was purchased. Please send me any questions you may have about the product.