PetBird Xpress stocks 1,000's of items including Diet Conversion Kit. Quality Customer Care is our first priority - try calling us at 800-448-2014. We will ship your Diet Conversion Kit in 1 day. Count on dependable delivery and shipment tracking from UPS and Federal Express. PetBird Xpress has been supporting pet bird owners since 1989 - count on us for dependable delivery and secure shopping!