The 12oz clear glass jar can hold up to about 21g of product. The wood cap has a silicone gasket that creates and airtight seal that keeps contents fresh and seals odors inside. The gasket gives some resistance, but the lid can be pulled out and pushed on. These are not child resistant jars but are good storage options for a variety of different uses. This is an 80ct bulk box.     GLASS JAR | Glass is a great storage option when it comes to any form of product. These glass jars keep contents fresh and have a clean, elevated look with the wood cap.  WOOD CAP | These caps are made of bamboo wood and do not feature a child-resistant closure. These are lift-off lids that have a clear silicone gasket to create the airtight seal.  STORAGE | Store a variety of products in these glass jars. They can be used for extracts, spices, beauty supplies like makeup, craft supplies, and more.  12OZ JAR | These are 12oz glass jars. They can hold roughly 21g of product.