Hanning Elektro-Werke ZC16A2 13500RPM 170w Electric Centrifuge Motor Recently retired, in good shape. 30-day money back guarantee. Has a 3" crack in the outer lip of the housing, we believe this won't be of concern to the functionality. If there is anything wrong with the item that you have purchased, please contact us directly and give. us a chance to help, we respond quickly and will ensure you are satisfied with your purchase and experience! Please do not leave negative feedback or open any disputes with eBay or PayPal. Contact us directly and we will fix the problem quickly. We strive for 5/5 Star service! Fast US Free shipping!