Engine 100W Starter Kit

OBS Engine 100W Starter Kit is the world's first replaceable battery sleeve(6 different colors of battery sleeve included) 21700 box kit, which combines Engine 100W Mod with Engine S Tank.
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Engine S Tank

The Engine S Tank is loaded with the latest E Mesh Series coil that gives you fresh, smooth, and rich cloud delivery.
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E Series Coils

OBS E series coils are only compatible with the Engine S tank atomiser.
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