The MTL 4-in-1 Prebuilt Coils Set is collectively crafted for Mouth-to-Lung builders looking for a range of coil builds with the convenience of pre-coiled setting. Each coil is machine-twisted for precise and consistent building material, presenting different types of structures optimized for flavor recreation and vapor-orientated performance. Each coil set comes in an efficient portable box to carry 4 different types of coils, with different amount of prebuilt coils in each that totals 24 ready-to-use coils.