The Freemax Twister Coil Is Specially Designed For The Freemax Twister Kit. It Comes With Four Kinds Of Coils, The SS316L X1 0.12ohm Coil, Kanthal X1 0.15ohm Coil, Kanthal X2 0.2ohm Coil And Kanthal X3 0.15ohm Coil, Which Will Bring You Various Vaping Experience.