These teeth are double the fun--a pair of pairs. Each has two teeth molded together for the classic Vampire tooth and the one just in front of it. The Shredders attach in the same manner as the regular Scarecrow Fangs. Each pair of shredders comes with the full Scarecrow customizing kit. The Shredders are a one size fits all item and are very similar in shape to the regular Scarecrow Fangs.