This Pulsar Directional Ball Carb Cap is made with borosilicate glass. This carburetor cap can be manipulated to direct air flow into bangers smaller than 35 mm. Carb caps allow for cooler dabs conserving the flavor for longer sessions. Being able to direct the airflow helps ensure that customers get maximum efficiency with concentrates and their product is completely vaporized. Diameter measures 35 millimeters wide. Your customers can dab away their worries while using this accessory with their favorite oil rig.