PetBird Xpress offers over 1,000 items including Multi-Cluster. Our Customer Care Representatives are standing by to help with your questions. Expect your Multi-Cluster to leave our warehouse within 1 day. Its easy to track your shipment by clicking on MY ACCOUNT at the top of this page. PetBird Xpress is your source for quality branded products from PLANET. We don't stock any inferior house brands. At PetBird Xpress, your satisfaction is our number 1 concern! We've been at it for over 15 years and we have satified thousands of customers like you.