Cbd Cartridge factory V9 is ceramic cartridge,2.0ml delta 8 cbd cartridge, big oil capacity, big filling space for easy to filling,100% No Leackage,it is fit for delta 8 cbd cartridge,For thick oil, we also use 1.6mm*4 oil intake hole size. If your oil is very thicker or thinner,we can customized oil intake hole size for your oil. Fit for CBD oil, THC oil, Delta 8 oil, Delta 9 oil and so on.The mouth tip of cartridge is made by ceramic,it is very clean and high grade. Connected 510thread battery. There have an O-ring dor adjusting airflow according to your need,the metal touch oil is made by stainless steel,Food grade,Passed the Heavy Metal Testing.Bottom with Metal screw cap.Best appearance. OEM *print logo on the glass *Laser logo or batch number on the screw cap *UV printing logo Size (L x W x H) 14 x 65 mm Volume 2.0ml Oil Intake hole 4 holes, 1.6mm hole size (custom hole size) Thread 510 Thread Resistance 1.4ohm Material 1. Ceramic Mouth Tip 2. SUS Material 3. Glass Housing Feature 1. Ceramic Mouth Tip, Flat, Screw on 2. 2.0ml large volume 3. SUS material, Lead free Package 50 pieces of cartridge body each Tray 50 pieces mouth tip each Tray Packed in a BoxCbd Cartridge factory website:http://www.greentimeindustrial.com/cartridge/cbd-cartridge/