510 Threaded, 1.2ohm, apply to battery/box mod with output wattage below 20W Ceramic Core instead of cotton core, purer taste, anti-dry heating & without block of e-liquid/inhaling; Dispoable Type--To ensure a better smoking experience, it is not recommended for repeated use 4 Oil intake holes with diameter 2mm (On central column), Especially suitable for Thick oil, high and stable imbibition rate, burning/atomizing more fully without residual ; Leak protection with thick silicone seal ring Stainless Steel Drip Tip; Quality Glass Tank; 0.5ML Top Fill Tank & Bottom Airflow, smooth ventilation achieving huge vapor Each is packed in PP Tube for your easy storage. Feature: 510 Thread / 0.5ML / 1.2ohm Ceramic Core especially for Thick Oil vape pen These cartridges are low resistance so only meant for low power usage. Apply to box mod/battery with output wattage below 20W (15W/16W recommended) Disposable, Not recomended for repeated use Different Models: 124601: Stainless Steel Drip Tip/Gold 124602: Stainless Steel Drip Tip/Silver 124603: Ceramic Drip Tip /Black 124604: Ceramic Drip Tip /White Kindly note: 1. E-liquid is not included, it should be purchased separately 2. Top Filling Only: Screw out the upper part, add e-liquid along the inner wall(not more than 2/3 capacity), do not fill into the center hole. 3. Tighten the screw after you finish filling e-liquid to avoid leaking 4. After adding oil, leave the atomizer stand upright for at least 10 minutes before connected to battery and start smoking 5. To ensure a better smoking experience, it is recommended to fill up the oil all at once (not more than 2/3 capacity) and use it as soon as possible. If the oil is stored in atomizer for a long time, it will easily cause oil leakage. It'd better to replace the atomizer when a burnt taste is found / the smoke oil is consumed. 6. If the tank is found to be with cracks, please stop using it immediately Package Content: 5 * 0.5ml atomizer