The Smok Novo 4 Replacement LP1 Coils is specially designed for leak-proof vaping.Each coil in this series uses 3 silicone rings to provide tightness. The LP1 series coils have: LP1 Meshed 0.8ohm Coil,LP1 DC 0.8ohm MTL Coil,and  LP1 Meshed 1.2ohm Coil.When inserting the coil into the Smok Novo 4 Pod,the added silicone ring on the bottom of the coil would fill the gap,effectively stemming the liquid leaking from the pod that results in a messy vaping experience or dirty hand. The LP1 series Coil is compatible with Smok Novo 4 Pod Cartridge and Smok Novo 4 Pod Kit,novo 4 mini kit,pozz pro kit,Nfix Pro Kit.