Capacity: 1ml Model:31G 1/4" (6mm) Quantity: 100PCS Our syringes are made of high-quality materials to ensure the safety-durability of our products, but also provides you with better health protection. Multipurpose Use - Can be used for ink refilling, measuring and dispensing fluid, essential oil, perfume separator, lubricants, sealants, glue adhesives applicator, etc. NOTE - Only use for industrial, science lab and experiments using or as home tool.