Uwell Nunchaku Replacement Coil is designed for the Nunchaku Tank, There are Uwell Claptonized A1 coil 0.25ohm and Claptonized A1 coil 0.4ohm available. The Claptonized A1 0.25ohm coil is recommended for the wattage 40-50W and the Claptonized A1 coil 0.4ohm is recommended for the wattage 45-55W. It will bring the large clouds vaping at the low wattage. One pack have 4pcs. 0.12ohm Meshed Nunchaku Coils are best for TCR mode,50-60 watts in power mode. 0.2ohm Meshed Nunchaku Coils rated for 50-60 watts. 0.25ohm Nunchaku Coil uses a claptionized A1 coil rated for 40-50 watts. 0.4ohm Nunchaku Coil uses a claptionized A1 coil rated for 45-55 watts. Brand: Uwell Unit: 4pcs Coil: Claptonized A1 coil 0.25ohm (40-50W) Package: Simple Packing Shipping method:Please check here for details. Warranty: Please refer to Warranty Policy for details. How to save money? You can use shopping points. Please check instruction here. Please check discount codes for orders over 50 USD and save money. If you want bigger discounts, please check our wholesale instruction. Your satisfaction is our top priority. If for any reason you are in need of help or support, please click Help Desk on the top right corner and submit a ticket.We will reply to you asap.