Ohm Boy SLT Vape E-Liquid 20ml Concentrate Longfill Nicotine Free 0mg Nic salts

The nib has been designed to fit over the longfill nib, once you have secured it over the longfill and making sure the longfill is facing up and the 10ml booster shot is down, squeeze and release the longfill bottle and let the vacuum do its work.