Gordo Scientific's Blue OG Riptide Spinner Carb Cap is an iconic, multi-core design boasting six individual air paths for a unique dabbing experience. Since launching in 2016, thousands of satisfied customers have added this essential tool to their collection. The spinning pearls help control the temperature and maximize flavor with a more even material spread. Each cap is crafted with care using superior SCHOTT borosilicate glass and designed to fit any 25mm American-made nail. Although some customers have achieved success with 30mm nails, we strongly recommend the 25mm size for optimal results. Enjoy great flavor, unparalleled efficiency, and lasting integrity with the easy to clean and maintain Riptide Carb Cap.