Designed specifically for the Uwell Crown 4 Sub-Ohm Tank, these Uwell Crown 4 Replacement Coils feature vertically oriented parallel coils with high-quality organic cotton for optimal performance and flavor production. Engineered to provide smooth, consistent vapor and enhanced flavor, these coils ensure a premium vaping experience. Each pack contains four replacement coils, so you can enjoy long-lasting performance and fewer replacements. Keep your Crown 4 tank in top shape with these reliable, high-performance coils.