With a price tag of $10.99, the BGA CPU NOZZEL-(20X70) is a worthwhile investment for anyone looking to increase their productivity. This nozzle can be used with any of the following machines: thermal conductivity meter, X-ray fluorescence spectrometer, and scanning electron microscope. This is a plastic, non-toxic and non-corrosive nozzle that is safe to use. The nozzle comes with an attachment that can be used to store it safely. It has a narrow opening and a wide opening, and is a necessary tool for measuring the flow of air or other gases in an area. This product is lightweight and can be easily stored in any lab or workspace.