Keystone Flex-3 40K Prefilled Kit

The Keystone Flex-3 40K Prefilled Kit is designed for convenience, flavour, and long-lasting performance. Its innovative 1-second Quick Switch pod system allows you to replace pods instantly, ensuring fresh flavours with every puff. Compact and stylish, it fits comfortably in your hand or pocket, making it ideal for on-the-go vaping.

Preloaded with 15 natural flavours, the Flex-3 delivers smooth, authentic tastes crafted from premium ingredients. Its dual mesh 0.6Ω coil system produces rich clouds and satisfying hits, while the Sytek dual mesh design ensures no e-liquid goes to waste, offering up to 40,000 puffs of enjoyment.

The device features adjustable power (22W–28W–40W) and dual airflow control for a loose or tight MTL experience, letting you customise each draw to your preference. A visible e-liquid tank and battery screen make it easy to monitor usage and know when to recharge via Type-C. Precision-engineered cotton prevents leakage and residue, protecting every drop of juice.

Safety is built in with a child-proof locking button, providing peace of mind without compromising usability. Measuring 88×55×25mm and powered by a 1100mAh battery, the Keystone Flex-3 40K combines portability, performance, and flavour into a sleek, reliable device for every vaper.