The 521mini multi-function coil building station integrates both coil combustion and precise resistance tester, providing a single stop solution for enthusiasts to handle atomizer coils efficiently Ideal for e-cigarette users and e-cigarette enthusiasts who need reliable tools for coil maintenance and resistance measurement in daily life Perfect for a variety of scenarios such as VAPE travel or desktop setup on the go, it can be used flexibly without taking up much space Compact 8x8x4cm design makes it easy to grip with one hand and easy to carry. Includes transparent switch, bright red, real-time display for easy operation, all stored in a hard shell with screws fixed corners for protection A multi-functional resistor measuring instrument that provides high inspection accuracy and stable coil combustion, making it an essential accessory for various atomizer coils, Manufacturer: Rxgiasup