Here are the specs for the Twisted Messes RDA² (OEM from Wismec)
Each package contains: One assembled atomizer, one high-quality 1.5mm hex-driver, one extra black AFC ring, one extra RADEL drip tip, 4 extra hex screws, one 510 drip tip adapter, 4 extra o-rings
• Split post design allowing coil installation into the center, far sides or via the standard method.
• Negative post milled into the deck
• Deck is 22mm
• Four individual 2.8mm post holes
• Clamp style posts with flat bottomed screws for better connection (thanks to JayBo)
• 5.5mm juice well
• Stainless Steel throughout the RDA (except contact pin)
• The black Drip Tip is not delrin. It is RADEL, a high-temperature plastic with a slightly lower melting point than PEEK
• That Hex-Driver tho! (check the gallery pic and prepare to fall in love with hex screws)
• Square air-holes
• All PEEK insulators
• Gold plated brass contact pin
• Three 3x3mm adjustable square air-holes, with a single coil airflow option on the inner barrel (smallest option is one air-hole open, in both single and dual mode)
Warning: This is an advanced vapor device that requires installation of custom heating coils, and is not recommended for beginners. Please ensure that you understand what you are purchasing before buying this product. Make sure to read all instructions contained within the packaging to ensure safe operation.
DEVICE AND BATTERY WARNINGS:
1. WARNING: Lithium-ion batteries are volatile. They may burn or explode with improper use. Do not use or charge with non-approved devices. Overuse of vaping apparatus may cause this product to overheat, malfunction, and/or may cause burns.
2. Do not leave this product unattended while charging anytime or overnight, and do not charge it in your vehicle.
3. Keep away from high heat, direct sunlight, cold temperatures, humidity and water. Injury or death can occur.
4. Do not replace batteries with non-approved units.
5. Do not mix new and used batteries or different brands.
6. When charging keep away from flammable areas such as but not limited to wood floors and carpets. Always use a fire resistant container or bag.
7. Always have a fire extinguisher in an event of a fire.
8. If battery or device looks damaged, do not use.
9. Do not expose the battery to direct sunlight.
10. If you witness the battery starting to balloon, swell up, smoke, or become very hot. Immediately disconnect the power to your home or office from the circuit breaker. If a circuit breaker is unavailable, disconnect from outlet. Do not approach the battery for at least 2 hours and make sure that the room is ventilated.
11. Never drop, damage, or tamper with the batteries. If you do not use.
12. Never attempt to charge directly from the wall outlet. Always use a surge protector.
13. Do not throw batteries into fire.
14. Do not connect improperly.
15. Do not use any charger other than the one provided to you to charge your device
16. Do not charge batteries unless are specifically labeled as “rechargeable”.