Take your session to the next level with the Strictly 510, the first and only Strictly exclusive dual-cartridge battery. Designed for true connoisseurs, this powerful device lets you choose your flow: Run one cartridge for a clean, classic hit. Switch between cartridges instantly for variety. Activate both at once and experience the full power of dual flavor and potency. With its sleek design, durable build, and unmatched versatility, the Strictly 510 isn’t just another battery – it’s a statement. ✔ 510 threaded for universal compatibility✔ Single or dual cartridge mode at your command