Aspire Nautilus 2S Coils 0.4? Ohm – 23-28W (sub-Ohm – do not use with standard batteries) 0.7? Ohm – 20-25W Mesh (sub-Ohm – do not use with standard batteries) Pack of 5 genuine replacement Aspire Nautilus coils 0.4? Ohm. & 0.7? Ohm These are direct lung vaping sub-Ohm coils and they come with the Aspire Nautilus 2S tank. Please read the safety notice below. The box comes with a hologram and scratch panel so you can check the authenticity of this product. These coils are compatible with the following Aspire tanks: K3 (do not use these coils with the K3 battery) Nautilus Mini Nautilus Nautilus 2 Nautilus 2S Safety Notice Sub-Ohm tanks and coils must be used by experienced and knowledgeable users as additional safety precautions must be practiced when using these items. These products need to work on a mod/battery capable of firing at sub-Ohm resistances. So, for example, if you have a 0.4 Ohm coil in your tank, your mod/battery must be capable of firing at 0.4 Ohm resistance, or lower. You also need to ensure your device can cope with the amps. Improper use can lead to physical injury and damaged equipment.