This wig wag bubble cap is oozing with rasta colors, but hides another surprise. Hold it under a black light to see the UV reactive streak that zig zags through the carb cap. Directional carb caps make it so that you can control the airflow into your banger more efficiently to vaporize your wax. This way you're wasting less wax and taking bigger dabs. Fits perfect on most flat top bangers and thermals.