The Safety Needle Charging Tool Kit is engineered with your safety in mind while offering features that optimize your internal reservoir shock absorber charging process. The spring-loaded aluminum cover protects the replaceable hypodermic needles, ensuring safe usage and storage. This cover also guides the needle into the charge port to help prevent damage or bending of needles while charging, making this kit an excellent choice for frequent use. This charging assembly is also equipped with a 300-psi pressure gauge to accurately measure nitrogen pressure and a ball valve for easy shut off. The valve assembly be connected to the nitrogen tank’s regulator via an air chuck using the included Schrader valve, or the Schrader valve can be swapped for a quick disconnect fitting (not included) for direct connection to your nitrogen system.