Check the listing for details. Wind Up Bat Wings Flap And Rolls Tested Works. Condition: Used. Listed at 13.00 USD. The product is a wind-up toy featuring bat wings that flap and roll. Tested and confirmed to work, this toy is sure to provide hours of entertainment for children and collectors alike. With its unique design and movement, it adds an element of novelty to the world of electronic, battery, and wind-up toys from the 1970s up to now. Perfect for those who enjoy nostalgic toys and curious inventions.The product is a wind-up toy featuring bat wings that flap and roll. Tested and confirmed to work, this toy is sure to provide hours of entertainment for children and collectors alike. With its unique design and movement, it adds an element of novelty to the world of electronic, battery, and wind-up toys from the 1970s up to now. Perfect for those who enjoy nostalgic toys and curious inventions.