This Potent Cannabis pre-filled tip is exactly what it says – Potent! It is 1ml that contains 300mg of THC and 250mg of CBD. Each tip has Potent Cannabis’s all natural mixture. No additives, though a light citrus taste is present. These are 510 thread replacement cartridges. Each tip has about 100 to 125 puffs and is excellent for medicating. These reusable cartridges have no plug and are leak proof.