All orders require a "card verification number." On Visa/MC this is the 3 extra digits printed on the back of the card, on Amex it's 4 digits on the front.

Rhinoceros 3D and associated products are backed by a 100% satisfaction guarantee. Defective "Form Vs Shape" training CDs will be replaced at no charge at any time. Privacy Policy: All credit card orders are processed through InternetSecure and billing information is treated in accordance with their privacy policy. Hydraulic Design does not receive credit card information from orders placed online and does not store customer credit card information received otherwise. Shipping and billing information is used to process orders and stored for accounting purposes. Information will not be disclosed to third parties beyond what is necessary for those purposes. Hydraulic Design does not send unsolicited marketing e-mail to it's customers. If that policy was to change, consent would be requested from new and current customers.