E-XY 8 in 1 Premade Coil Box Kit Tank track Clapton Regular Twist Clapton Juggernaut Prebuilt Wires Cottons Screwdriver for RDA Each Box Contain, the list is: 2 pcs Cotton 2 pcs Screwdriver 5 pcs Tank track 0.45ohm 5 pcs Clapton 0.88ohm 5 pcs Regular coil 0.ohm 5 pcs Twist 0.45ohm 5 pcs Twist Clapton 0.75ohm 5 pcs Juggernaut 0.35ohm