Pottery Barn Kids Light-Up Ghost Treat Bag. Carefully woven from supersoft felt fabric, this treat bag adds whimsy to the holiday and is the perfect finishing touch to their costume. With lots of fun details, including battery-powered LED lights embedded into the bag, its one-of-a-kind design will let your trick-or-treater light up the night. Made of 100% polyester felt and a layer of chiffon. Treat bag lights up with LED lights and is battery operated; providing your child with more visibility.. Treat bag is yarn-dyed – fibers are treated individually with environmentally safe dyes before weaving to offer vibrant, lasting colors. On/off switch located under the bag and includes a cell battery. Approximately measurements: Treat Bag (without handle): 9" wide (at top) x 5.5" wide (at bottom) x 9" high; Handle: 0.75" wide x 13.5" long. Excellent conditions. Brand new with tag