Purchase the Treekeeper 9-15ft. Artificial Christmas Tree Storage Bag with Wheels at Michaels.com. The GreensKeeper Artificial Christmas Tree Storage Bag with Wheels fits trees up to 15ft. tall, or smaller trees along with wreaths, garlands, and other decor. The zip-away net top section is perfect for items you want to keep separate, but safe. Durable construction with a strong steel frame and oversized wheels to easily move in/out of storage.