HIGHLOCK Supercell 5ml Child Resistant Glass Jar 400ct Bulk BoxLock in freshness by packaging concentrates in the Supercell jar. The high quality glass is super thick, and prevents heat from traveling from a hot banger into the chamber when used as a carb cap. There is a liner under the cap that is also non stick and prevents sticky oils and wax from sticking to the inside of the cap. This liner also creates an airtight seal with the jar that seals odors inside, making it totally smell proof. Once the jar is