This versatile pump can be used to pump up your tires or your shock. It uses a dual action motion to make it easy to pump in higher volumes or higher pressures. An anodized bleeder valve allows you to finely tune your pressure while reading the gauge.Features: Shock & Tire Pump Alloy Construction Oversize Gauge For Easy Visibility Twist Mode Function Selector Air Release Button For Fine Tuning Pressure Specs: Capacity: 300 PSI Length: Open: 12 1/2" Closed: 8 1/2" Weight: 197 Grams