Pebbles-Trick Or Treat wall D?cor. Easily decorate for Halloween parties and celebrations with these self-adhesive decor pieces. This 13-3/4x5-1/4 inch package contains four 12x5 inch bats, four 9x3-1/2 inch bats, and four 7x3 inch bats. Also includes adhesive tape. WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Do not mouth or chew. Acid free. Archival Quality. Imported.