Spare GT Coils can be found here

Specs:

• Dimensions: 30 x 56mm
• Capacity: 8ml
• Drip Tip: 510
• Coils:
• GT4 Meshed 0.15ohm Coil: 50 -75W
• GT Mesh 0.18ohm Coil: 50 - 85W
• Compatible with all NRG GT coils
• Extremely large 8ml capacity
• Sliding top fill, locked by a half twist of the cap for anti-leak protection
• Excellent, varied range of NRG coils, plus any coil with a Baby Beast fitting
• Insulation layer between juice and top cap to ensure even heating and absorption throughout the life of your coil

What's in the box:

• 1 x Vaporesso NRG-S Subohm Tank w/ GT Mesh 0.18 ohm Coil pre-installed
• 1 x Spare GT4 Meshed 0.15 ohm Coil
• 1 x Spare Glass (5ml)
• 4 x Spare O-rings
• User Manual, Warranty Card