These are needle style fill tool adapters from Schmidty Racing Suspensions. They are designed to thread the schrader valve into a no-loss chuck and then apply / recharge nitrogen into shocks utilizing the self-sealing rubber plug / pellets (used in many shocks including Fox, Yamaha, KYB, Polaris RZR, Arctic Cat, Ohlins, Ford Raptor, and snowmobile).
The tool comes with two (2) durable aluminum based needles. This needle fill tool has a schrader valve tip so it can be used with a standard air chuck or can be threaded directly into a no-loss chuck, making them ready to fill any rubber pellet / self-healing charging port shocks. Does the same thing as Motion Pro 08-0075. The two different size NPT adapters can be disassembled and used to create a custom manifold if you desire.
SRS 1/8" NPT: 1/8" NPT needle adapter has a schrader valve coupled to it for direct placement into a no-loss chuck, or it can be separated from the coupler and threaded into your custom manifold with 1/8" NPT port.
SRS 1/4" NPT: 1/4" NPT Needle adapter has a schrader valve threaded into it for direct placement into a no-loss chuck, or the schrader valve can be removed from it, and then threaded into your custom manifold which has a 1/4" NPT port.
SRS Anodized Aluminum Hub: Anodized SRS billet needle adapter has a schrader valve coupled to it for direct placement into a no-loss chuck. SRS billet needle adapters are available in either Black or Red and are shorter and more compact than the NPT adapter variations. They also come with a nicer knurled, chrome-plated cap on the schrader valve.