Laboratory syringes are the go-to when needing to transfer liquids into confined spaces without the utmost precision.
Disposable lab syringes are typically made of polyethylene for its cheap cost and effective resistance to most chemicals. These syringes are typically bulk-packaged for maximum economy.
Non-disposable, reusable glass syringes are useful in applications where the transferring liquid may corrode or absorb polyethylene. Glass lab syringes are usually made of borosilicate glass for its resilience to heat and pressure.