bstean 25 pack 1ml disposable syringe with 27ga 1/2 inch needle, individual package bstean this syringe pack is very wide-range in application, you can use it for a refill, measuring and dispensing any liquid, like garden water, essential oil, not too heavy glue, etc. it can also be used for scientific experiments, pet rescue. note: 1. not recommended for human use. 2. if you want to reuse it, please take care of the measuring numbers, because the number is designed for single-use, you can use clear tape to cover it to prevent to wash off.