This is the Rockshox high pressure fork/shock pump.

Features: 

• High-pressure/small-volume aluminum barrel fork/shock pump
• 360 degree swivel hose with finger-tap bleeder, ergo handle, and no-leak swivel Schrader valve head
• Max PSI 600

Specifications:
Valve Compatibility: Schrader
Max Pressure: 600 PSI
Pump Type: High Pressure
Gauge: Analog
Material: Aluminum
Color: Black