3g Diamond THC Vape Pen

Batch malfunction?if not would have been good product, worth it as a bigger cart size option. Cons : not sealed, 2 came with sign of usage, bought 3 and none weigh the same, one 1.5g and one 1g off. Pros : Product is good, smokes easy and nice smokeblowout. Potent. Would have given a 5 if not for air bubble in carts vs none ratio