FOX 2.0 Performance IFP Rear Shocks...sold in a pair. These socks are good for about 2" of rear lift on a 4wd. These typically drop ship from a Fox warehouse.  Below, is the description from Fox;


Rear Shocks Info:
The 2.0 Performance Series Shocks delivers race-dominating performance in a hassle free bolt-on package. Their heat-reducing design includes a metal-impacted aluminum shock body that dissipates heat faster than conventional steel. Inside the Internal Floating Piston (IFP) separates shock oil from a high-pressure nitrogen gas chamber that provides a predicable ride quality capable of handling the roughest road conditions. Combine these new technologies with a competitive price for a winning combination.

Titan Fox 2.0 Rear Shocks