MJ Arsenal Carb Cap Available Styles: Spinner - Mushroom: Expand your dabbing consciousness with these fungus inspired psychonaut carb cap accessories!  Add a little function and enjoy the adventure! Dimensions: 1.5" x 1.2" Spinner: After several weeks of R&D we are proud to finally offer the MJA Spinner Carb Cap! With 4 directional carb holes to promote circular airflow, watch your terp pearls/oil spin with even the lightest of pulls. Increase control over your oil, keep your air flow consistent, and your pearls a'spinning.  This spinner carb cap is a game changer. Dimensions: 1.5" x 0.7"