The SMOKJOY Pyramid RDA is right here for you! It adopts the innovative Pyramid-type triangle posts which make installing your coils much easier than ever before. The 810 delrin drip tip with knurling is very attractive. It comes with a bottom feeder(BF) pin which means it's also made to work perfectly with all types of squonk mods. The adjustable bottom airflow brings optimal flavor via maximum customization.