Post-Filling Care:

• Invert the device (upside down) for 30 minutes immediately after capping to cool oil away from the coil.
• Flip it right side up for another 30 minutes to allow the oil to fully saturate the coil and avoid dry hits.
• Store at room temperature (68-77°F).

We are a professional manufacturer specializing in disposable pens, cartridges, and 510 thread batteries. With over 5,000 square meters of dust-free workshops and more than 500 employees, we maintain a monthly production capacity of 300,000 pieces.

Our products have passed CE, ROHS, MSDS, and SGS testing. Every item undergoes strict quality control before delivery to ensure the best performance and price for our customers.

Notes: Import duties and taxes are the buyer's responsibility. We declare items at a lower value to minimize potential import taxes. Please check with your local customs office regarding additional costs.

Shipping: We process orders within 3 to 15 working days. Tracking numbers are provided via email. We ship via FedEx Ground, Air Freight, and Sea Shipping. Note: We cannot ship to PO BOX addresses or certain territories like Puerto Rico, Hawaii, Guam, and Alaska.

Returns: Replacements are available for wrong styles or colors. Returns for preference are accepted if items are in new condition, with shipping costs covered by the buyer. Please contact us within 7 days if goods are damaged in transit.